Tag: 200-300

Lythraceae alkaloids: total synthesis of (±)-lythrancepine II was written by Hart, David J.;Hong, Won Pyo. And the article was included in Journal of Organic Chemistry in 1985.Recommanded Product: 2314-37-6 This article mentions the following:

A stereoselective total synthesis of the quinolizidine metacyclophane Lythraceae alkaloid lythrancepine-II (I) is described. The quinolizidine nucleus was constructed using an N-acyliminium ion cyclization of amide II. The C(6) sidechain was then introduced and the macrocycle constructed by an intramol. biaryl coupling. The synthesis requires 17 steps and proceeds in approx. 1% overall yield. In the experiment, the researchers used many compounds, for example, 3-Iodo-4-methoxybenzaldehyde (cas: 2314-37-6Recommanded Product: 2314-37-6).

3-Iodo-4-methoxybenzaldehyde (cas: 2314-37-6) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Iodo alkanes participate in a variety of organic synthesis reactions, which include the Simmons–Smith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.Recommanded Product: 2314-37-6

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Expanding Benzoxazole-Based Inosine 5′-Monophosphate Dehydrogenase (IMPDH) Inhibitor Structure-Activity As Potential Antituberculosis Agents was written by Chacko, Shibin;Boshoff, Helena I. M.;Singh, Vinayak;Ferraris, Davide M.;Gollapalli, Deviprasad R.;Zhang, Minjia;Lawson, Ann P.;Pepi, Michael J.;Joachimiak, Andrzej;Rizzi, Menico;Mizrahi, Valerie;Cuny, Gregory D.;Hedstrom, Lizbeth. And the article was included in Journal of Medicinal Chemistry in 2018.Quality Control of 1,2-Difluoro-3-iodobenzene This article mentions the following:

New drugs and mol. targets are urgently needed to address the emergence and spread of drug-resistant tuberculosis. Mycobacterium tuberculosis (Mtb) IMP dehydrogenase 2 (MtbIMPDH2) is a promising yet controversial potential target. The inhibition of MtbIMPDH2 blocks the biosynthesis of guanine nucleotides, but high concentrations of guanine can potentially rescue the bacteria. Herein we describe an expansion of the structure-activity relationship (SAR) for the benzoxazole series of MtbIMPDH2 inhibitors and demonstrate that min. inhibitory concentrations (MIC) of ≤1 μM can be achieved. The antibacterial activity of the most promising compound, 17b (Q151), is derived from the inhibition of MtbIMPDH2 as demonstrated by conditional knockdown and resistant strains. Importantly, guanine does not change the MIC of 17b, alleviating the concern that guanine salvage can protect Mtb in vivo. These findings suggest that MtbIMPDH2 is a vulnerable target for tuberculosis. In the experiment, the researchers used many compounds, for example, 1,2-Difluoro-3-iodobenzene (cas: 64248-57-3Quality Control of 1,2-Difluoro-3-iodobenzene).

1,2-Difluoro-3-iodobenzene (cas: 64248-57-3) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Quality Control of 1,2-Difluoro-3-iodobenzene

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Synthesis and structure-activity relationships of novel, substituted 5,6-dihydrodibenzo[a,g]quinolizinium P2X₇ antagonists was written by Lee, Ga Eun;Lee, Ho-Sung;Lee, So Deok;Kim, Jung-Ho;Kim, Won-Ki;Kim, Yong-Chul. And the article was included in Bioorganic & Medicinal Chemistry Letters in 2009.Reference of 10297-05-9 This article mentions the following:

Iminium quaternary protoberberine alkaloids (QPA) have been found to be novel P2X₇ antagonists. To assess their structure-activity relationships, these compounds were modified at their R¹ and R² groups and assayed for their ability to inhibit the 2′(3′)-O-(4-benzoylbenzoyl)-ATP (BzATP)-induced uptake of fluorescent ethidium by HEK-293 cells stably expressing the human P2X₇ receptor, and their ability to inhibit BzATP-induced IL-1β release by differentiated THP-1 cells. Compounds I (R¹ = Et) and I (R¹ = allyl), and especially compound II (R¹ = Et, R² = 2-nitro-4,5-dimethoxybenzyl) had potent inhibitory efficacy as P2X₇ antagonists. In the experiment, the researchers used many compounds, for example, 1-Chloro-4-iodobutane (cas: 10297-05-9Reference of 10297-05-9).

1-Chloro-4-iodobutane (cas: 10297-05-9) belongs to iodide derivatives. Iodide-containing intermediates are common in organic synthesis, because of the easy formation and cleavage of the C–I bond. Polyiodoorganic compounds are sometimes employed as X-ray contrast agents, in fluoroscopy, a type of medical imaging. This application exploits the X-ray absorbing ability of the heavy iodine nucleus.Reference of 10297-05-9

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Relative Rate Profiles of Functionalized Iodoarene Catalysts for Iodine(III) Oxidations was written by Lex, Timothy R.;Swasy, Maria I.;Whitehead, Daniel C.. And the article was included in Journal of Organic Chemistry in 2015.Electric Literature of C8H7IO2 This article mentions the following:

A series of rate studies were conducted to evaluate the steric and electronic properties that govern the reactivity of iodoarene amide catalysts in the α-oxytosylation of propiophenone. A meta-substituted benzamide catalyst emerged as the most reactive. This catalyst was employed in the α-oxytosylation of a series of substituted propiophenones, returning the α-tosyloxy ketone products in excellent isolated yield. In the experiment, the researchers used many compounds, for example, 3-Iodo-2-methylbenzoic acid (cas: 133232-56-1Electric Literature of C8H7IO2).

3-Iodo-2-methylbenzoic acid (cas: 133232-56-1) belongs to iodide derivatives. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.Electric Literature of C8H7IO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

A mild approach for the synthesis of indoles from N-(2-iodo-aryl)formamides and phenylacetylene by a copper(I)- and palladium-catalyzed cascade process was written by Ahmed, Atiur;Ghosh, Munmun;Dhara, Shubhendu;Ray, Jayanta K.. And the article was included in Synlett in 2014.Computed Properties of C6H4Cl2IN This article mentions the following:

An efficient one-pot synthesis of phenyl-indoles I [R = 5-CH₃, 5,6-Cl₂, 5-Br, 5-F, etc.] via copper and palladium catalyzed cascade reaction of iodophenylformamide and phenylacetylene in DMF is described. The cascade reaction comprises a Sonogashira cross-coupling, an intramol. CN bond formation, and hydrolysis of the intermediate indole-1-carbaldehyde promoted by the same catalyst and base systems. This methodol. offers several significant advantages such as mild reaction conditions, overall high yields, easy functionalization and operational simplicity. In the experiment, the researchers used many compounds, for example, 4,5-Dichloro-2-iodoaniline (cas: 220185-63-7Computed Properties of C6H4Cl2IN).

4,5-Dichloro-2-iodoaniline (cas: 220185-63-7) belongs to iodide derivatives. Iodide-containing intermediates are common in organic synthesis, because of the easy formation and cleavage of the C–I bond. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Computed Properties of C6H4Cl2IN

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Ni-Catalyzed Regioselective Dicarbofunctionalization of Unactivated Olefins by Tandem Cyclization/Cross-Coupling and Application to the Concise Synthesis of Lignan Natural Products was written by KC, Shekhar;Basnet, Prakash;Thapa, Surendra;Shrestha, Bijay;Giri, Ramesh. And the article was included in Journal of Organic Chemistry in 2018.Synthetic Route of C8H9IO2 This article mentions the following:

We disclose a (terpy)NiBr₂-catalyzed reaction protocol that regioselectively difunctionalizes unactivated olefins with tethered alkyl halides and arylzinc reagents. The reaction shows an excellent functional group tolerance (such as ketones, esters, nitriles, and halides) and a moderate to good level of diastereoselectivity. The current cyclization/cross-coupling also tolerates mols. containing base-sensitive racemizable stereocenters, which are preserved without racemization during the reaction. This cyclization/cross-coupling provides a rapid access to (arylmethyl)carbo- and heterocyclic scaffolds, which occur widely as structural cores in various natural products and bioactive mols. In order to show synthetic utility and generality, we have applied this new method in gram-scale quantities to the concise synthesis of six lignan natural products containing three different structural frameworks. We further conducted mechanistic studies with radical probes and selectivity studies, which indicated that the current reaction proceeds via a single electron transfer (SET) process. In the experiment, the researchers used many compounds, for example, 4-Iodo-1,2-dimethoxybenzene (cas: 5460-32-2Synthetic Route of C8H9IO2).

4-Iodo-1,2-dimethoxybenzene (cas: 5460-32-2) belongs to iodide derivatives. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. The C–I bond is the weakest of the carbon–halogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I. This periodic order also follows the atomic radius of halogens and the length of the carbon-halogen bond.Synthetic Route of C8H9IO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Diasteroselective Synthesis of New Spiropiperidine Scaffolds from the CN(R,S) Building Block was written by Roulland, Emmanuel;Cecchin, Fabrice;Husson, Henri-Philippe. And the article was included in Journal of Organic Chemistry in 2005.Recommanded Product: 10297-05-9 This article mentions the following:

A methodol. allowing the construction of spiropiperidine scaffolds, e.g. I or II, similar to those found in naturally occurring alkaloids was been developed. This approach begins with the well-established CN(R,S) strategy in which the spiro-center was built via intramol. attack of a nitrile function in oxazolopyridinecarbonitriles, e.g. III (n = 1, 2), by an organolithium species obtained by halogen/Li exchange reaction mediated by either t-BuLi or Li naphthalenide. In the experiment, the researchers used many compounds, for example, 1-Chloro-4-iodobutane (cas: 10297-05-9Recommanded Product: 10297-05-9).

1-Chloro-4-iodobutane (cas: 10297-05-9) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Recommanded Product: 10297-05-9

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Cyclization via Carbolithiation of α-Amino Alkyllithium Reagents was written by Bahde, Robert J.;Rychnovsky, Scott D.. And the article was included in Organic Letters in 2008.Reference of 10297-05-9 This article mentions the following:

We report a new route to tertiary α-amino stereocenters by sequential alkylation of α-amino nitriles followed by reductive lithiation of the nitrile and cyclization onto an alkene. Reductive lithiation of α-amino nitriles using lithium 4,4′-di-tert-butylbiphenylide (LiDBB) and subsequent intramol. carbolithiation proceeded with modest to high diastereoselectivity to deliver cyclic or spirocyclic ring systems. The stereoselectivity of these intramol. carbolithiations was examined using d. function calculations to evaluate plausible transition state models. In the experiment, the researchers used many compounds, for example, 1-Chloro-4-iodobutane (cas: 10297-05-9Reference of 10297-05-9).

1-Chloro-4-iodobutane (cas: 10297-05-9) belongs to iodide derivatives. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Reference of 10297-05-9

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Mild and efficient oxy-iodination of alkynes and phenols with potassium iodide and tert-butyl hydroperoxide was written by Rajender Reddy, K.;Venkateshwar, M.;Uma Maheswari, C.;Santhosh Kumar, P.. And the article was included in Tetrahedron Letters in 2010.Application of 207115-22-8 This article mentions the following:

An efficient synthesis of 1-iodoalkynes and iodophenols was easily achieved by employing simple KI and TBHP. The reaction does not involve the use of a metal and base combination. A variety of substituted alkynes and phenols were prepared with good to excellent yield. In the experiment, the researchers used many compounds, for example, 4-Bromo-2-iodophenol (cas: 207115-22-8Application of 207115-22-8).

4-Bromo-2-iodophenol (cas: 207115-22-8) belongs to iodide derivatives. Organic iodides are widely used in organic synthesis. Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution. A typical method for synthesis of aromatic iodides is diazotization of primary aromatic amines followed by treatment of potassium iodide. Aliphatic alcohols are converted to alkyl iodides by treating with hydrogen iodide.Application of 207115-22-8

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Palladium-Catalyzed, Norbornene-Mediated, ortho-Amination ipso-Amidation: Sequential C-N Bond Formation was written by Whyte, Andrew;Olson, Maxwell E.;Lautens, Mark. And the article was included in Organic Letters in 2018.COA of Formula: C7H4ClIO2 This article mentions the following:

A palladium-catalyzed, norbornene-mediated ortho- and ipso-C-N bond-forming Catellani reaction is reported. This reaction proceeds through a sequential intermol. amination followed by intramol. cyclization of a tethered amide. The products, ortho-aminated dihydroquinolinones, e.g. I, were generated in moderate to good yields and are present in bioactive mols. This work highlights the challenge of competing intra- vs intermol. palladium-catalyzed processes. In the experiment, the researchers used many compounds, for example, 2-Chloro-6-iodobenzoic acid (cas: 13420-63-8COA of Formula: C7H4ClIO2).

2-Chloro-6-iodobenzoic acid (cas: 13420-63-8) belongs to iodide derivatives. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles. Polyiodoorganic compounds are sometimes employed as X-ray contrast agents, in fluoroscopy, a type of medical imaging. This application exploits the X-ray absorbing ability of the heavy iodine nucleus.COA of Formula: C7H4ClIO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com