Synthesis, 19F NMR spectral studies and antibacterial evaluation of some new fluorine containing indole derivatives
作者:Krishna C. Joshi、Anshu Dandia、Sunita Bhagat
DOI:10.1016/s0022-1139(00)80431-5
日期:1990.6
mercaptoacetic acid yielded 3′-phenylspiro [3H-indole-3,2′-thiazolidine]-2,4′(1H)-diones (IV) in 75–90% yields. Reaction of anil (III; Ar = 2,3,4,5-tetra-FC6H) with chloroacetyl chloride gave spiro[azetidine-2,3′- 3H indole]-2′, 4(1′H)-dione (VI) in 75% yield. However, similar reactions in the case of 3-(pentafluorophenylimino)-2H-indol-2-one did not give the expected spiro compounds: 3-indolylmercaptoacetic
研究了各种含氟的3-吲哚基氨基衍生物与巯基乙酸和氯乙酰氯的缩合行为。的3-芳基亚氨基-2H-吲哚-2-酮的环化缩合(III; Ar为4FC 6 ħ 4,3CF 3 Ç 6 ħ 4,2Cl3CF 3 Ç 6 ħ 3,2, 3,4,5-tetra-FC 6 H和2,3,4,6-tetra-FC 6 H)与巯基乙酸生成3'-苯基螺[3H-吲哚-3,2'-噻唑烷] -2,4 '(1H)-二酮(IV)的产率为75-90%。苯胺(III; Ar = 2,3,4,5-tetra-FC 6用氯乙酰氯H)得到螺[氮杂环丁烷-2,3'- 3H吲哚] -2',4(1'H)-二酮(VI),产率为75%。但是,在3-(五氟苯基亚氨基)-2H-吲哚-2-酮的情况下,类似的反应没有得到预期的螺环化合物:用巯基乙酸制得3-吲哚基巯基乙酸(V),而氯乙酰氯制得的产物不能被表征。此外,各种氟的含有靛红-3-腙反应(VII;