描述了合成吲哚[1,2- c ]喹唑啉(8)和苯并咪唑并[1,2- c ]喹唑啉(9)的合成途径和初步生物学评价。通过适当的二胺(例如2-(2-氨基苯基)吲哚或2-(2-氨基苯基)苯并咪唑)与2-氰基苯并噻唑的缩合获得产物。这项工作进一步证明了微波的普遍适用性,可以轻松快速地获得具有潜在药物价值的原始杂环。
The synthetic route to and a preliminary biological evaluation of novel indolo[1,2-c]quinazolines (8) and benzimidazo[1,2-c]quinazolines (9) are described. The products were obtained by condensation of the appropriate diamines (e.g. 2-(2-aminophenyl)indole or 2-(2-aminophenyl)benzimidazole) with 2-cyanobenzothiazoles. This work further demonstrates the general applicability of microwaves for a facile
描述了合成吲哚[1,2- c ]喹唑啉(8)和苯并咪唑并[1,2- c ]喹唑啉(9)的合成途径和初步生物学评价。通过适当的二胺(例如2-(2-氨基苯基)吲哚或2-(2-氨基苯基)苯并咪唑)与2-氰基苯并噻唑的缩合获得产物。这项工作进一步证明了微波的普遍适用性,可以轻松快速地获得具有潜在药物价值的原始杂环。
Reactions of 5-arylimino-4-chloro-5H-1,2,3-dithiazoles with stable phosphoranes: Novel preparation of dithiomethylenephosphoranes
作者:Hyi-Seung Lee、Kyongtae Kim
DOI:10.1016/0040-4039(95)02286-4
日期:1996.2
reactions of 5-arylimino-4-chloro-5H-1,2,3-dithiazoles with 2 equivalents of stable phosphoranes such as carboethoxymethylene-, acetylmethylene-, 4-chlorobenzoylmethylene-, and cyanomethylenetriphenylphosphoranes in the presence of pyridine in CH2Cl2 at room temperature gave a new type of the corresponding phosphoranes with aryliminocyanomethyldithiomethylene moiety as a major product.
Novel synthesis of 1-aryl-3-chloro-3-phenylazetidin-2-one-4-spiro-5′-4′-chloro-5′H-1′,2′,3′-dithiazoles and bis(2-oxo-azetidin-4-yl) trisulfides
作者:Moon-Kook Jeon、Kyongtae Kim、Yung Ja Park
DOI:10.1039/b103974c
日期:——
Treatment of
5-arylimino-4-chloro-5H-1,2,3-dithiazoles with in situ
generated (chloro)phenylketene in CH2Cl2 at rt gave
azetidin-2-one-4-spiro-5â²-(1â²,2â²,3â²-dithiazoles) as
major products, which reacted with primary and secondary alkylamines in
CH2Cl2 at rt to afford bis(2-oxo-azetidin-4-yl)
trisulfides in good to excellent yields.
English, Russell F.; Rakitin, Oleg A.; Rees, Charles W., Journal of the Chemical Society. Perkin transactions I, 1997, # 3, p. 201 - 205
作者:English, Russell F.、Rakitin, Oleg A.、Rees, Charles W.、Vlasova, Olga G.
DOI:——
日期:——
Reactions of 5-(arylimino)-4-chloro-5H-1,2,3-dithiazoles with primary and secondary alkylamines: novel synthesis of (arylimino)cyanomethyl alkylamino disulfides and their mechanisms of formation
作者:Hyunil Lee、Kyongtae Kim
DOI:10.1021/jo00077a017
日期:1993.12
Reactions of 5-(arylimino)-4-chloro-5H-1,2,3-dithiazoles with alkylamines such as isopropylamine, piperidine, pyrrolidine, and diethylamine in methylene chloride at room temperature gave (arylimino)cyanomethyl alkylamino disulfides (14-83%) along with N'-aryl-N-alkylcyanoformamidines (O-88%). The yields of the latter increase and those of the former decrease with the concentration of the amine. In addition, some of the latter compounds were independently synthesized by treatment of the former with cyclic amines such as piperidine, pyrrolidine, and morpholine in methylene chloride at room temperature (22-97%). The results indicate that the former compounds are involved as intermediates in the formation of the latter in these reactions. However, when [(p-nitrophenyl)-imino] cyanomethyl (pentane-1,5-diyl)amino disulfide was treated with sterically bulky amines such as tert-butyl- and diethylamines at reflux and room temperature, respectively, cyanoformamidines having a piperidine moiety rather than tert-butyl- and diethylamino groups were obtained as the only isolable products. Two pathways which involve initially either direct nucleophilic attack of alkylamines on the imino carbon or on the sulfur a to the amino group of (arylimino)cyanomethyl alkylamino disulfides are proposed to rationalize the results.