61936-95-6Relevant academic research and scientific papers
An organocatalytic cascade strategy for the enantioselective construction of spirocyclopentane bioxindoles containing three contiguous stereocenters and two spiro quaternary centers
Sun, Wangsheng,Zhu, Gongming,Wu, Chongyang,Hong, Liang,Wang, Rui
supporting information; experimental part, p. 6737 - 6741 (2012/07/28)
A rapid and efficient organocatalytic cascade sequence for the direct construction of spirocyclopentane bioxindoles has been carried out by using a chiral squaramide catalyst in the presence of a base. This process constitutes a powerful approach to the preparation of biologically important bispirooxindoles in high enantioselectivities (see scheme). Copyright
CONVERSION OF INDOLES INTO QUINOLINES THROUGH THE N-1-C-2 FISSION BY SINGLET-OXYGEN AS A MODEL EXPERIMENT OF BIOMIMETIC SYNTHESIS OF QUININE ALKALOIDS
Ihara, Masataka,Noguchi, Kazuharu,Fukumoto, Keiichiro,Kametani, Tetsuji
, p. 2109 - 2114 (2007/10/02)
Photo-oxygenation of indole-3-acetaldehydes (28-30) followed by treatments with dimethyl sulphide and then dilute acetic acid gave 4-acylquinolines (13, 31 and 32), respectively.
PHOTO-OXYGENATION OF INDOLE-3-ACETIC ACIDS AND INDOLE-3-ACETALDEHYDES: BIOMIMETIC CONVERSION OF INDOLES INTO QUINOLINES VIA N1-C2 FISSION
Ihara, Masataka,Noguchi, Kazuharu,Fukumoto, Keiichiro,Kametani, Tetsuji
, p. 421 - 424 (2007/10/02)
New conversion of indoles to quinolines via the N1-C2 fission using singlet oxygen reaction was investigated starting from indole-3-acetic acids and indole-3-acetaldehydes.Dye-induced photo-oxydation of indole-3-acetaldehyde derivatives (17 and 18) followed by treatments with dimethyl sulfide and then acetic acid produced 4-formyl- and 4-acetylquinolines (19 and 20), respectively.
