Sindelar, K. et al. published their research in Collection of Czechoslovak Chemical Communications in 1974 | CAS: 13420-63-8

2-Chloro-6-iodobenzoic acid (cas: 13420-63-8) belongs to iodide derivatives. Organoiodine compounds occur widely in organic chemistry, but are relatively rare in nature. 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.SDS of cas: 13420-63-8

Neurotropic and psychotropic agents. LXVII. 9-Chloro-10-(4-methylpiperazino)-10,11-dihydrodibenzo[b,f]thiepin and some related synthetic experiments was written by Sindelar, K.;Kakac, B.;Svatek, E.;Holubek, J.;Rajsner, M.;Metysova, J.;Protiva, M.. And the article was included in Collection of Czechoslovak Chemical Communications in 1974.SDS of cas: 13420-63-8 This article mentions the following:

The title compound (I) was prepared in 9 steps from 1-chloro-4-nitrothioxanthone. The decisive step of the synthesis was the oxidation of 1-chloro-9-methylenethioxanthene (II) with Tl(NO3)3 in MeOH; the principal product was the enol-ether III which was hydrolyzed to 9-chlorodibenzo[b,f]thiepin-10(11H)-one (IV). The by-products of the oxidation reaction were 1-chlorodibenzo-[b,f]thiepin-10(11H)-one, bi[1-chloro-11-methoxy-10,11-dihydrodibenzo[b,f]thiepin-10-yl], bi[1-chlorodibenzo[b,f]thiepin-10-yl], and Me 1-chlorothioxanthene-9-carboxylate. IV was transformed to I via 9-chloro-10-hydroxy-10,11-dihydrodibenzo[b,f]-thiepin and 9,10-dichloro-10,11-dihydrodibenzo[b,f]thiepin. An attempt at cyclization of 2-(2-acetamido-5-chlorophenylthio)-phenylacetic acid with H3PO4 acid in the presence of PhMe gave 2-chloro-5H-dibenzo[b,g]-1,4-thiazocin-6(7H)-one (V) and two other products resulting from interaction of the amide group with PhMe, and assumed to be 2-chloro-6-(4-tolyl)-7H-dibenzo-[b,g]-1,4-thiazocine and 6-[1-(4-tolyl)-1-ethylideneamino]-9-chlorodibenzo[b,f]thiepin-10(11H)-one. In the experiment, the researchers used many compounds, for example, 2-Chloro-6-iodobenzoic acid (cas: 13420-63-8SDS of cas: 13420-63-8).

2-Chloro-6-iodobenzoic acid (cas: 13420-63-8) belongs to iodide derivatives. Organoiodine compounds occur widely in organic chemistry, but are relatively rare in nature. 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.SDS of cas: 13420-63-8

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