20955-75-3Relevant articles and documents
New and general nitrogen heterocycle synthesis: Use of heteropoly acids as a heterogeneous recyclable catalyst
Hekmatshoar, Rahim,Sadjadi, Sodeh,Sadjadi, Samaheh,Heravi, Majid M.,Beheshtiha, Yahya S.,Bamoharram, Fatemeh F.
, p. 1708 - 1716 (2010)
An efficient synthetic method of six-and five-member nitrogen heterocyclic compounds was developed. Nitrogen heterocyclic compounds were prepared by condensation of the-dicarbonyl compounds with the corresponding-or-amino alcohols, subsequent cyclization, and spontaneous aromatization in the presence of a catalytic amount of Keggin-type heteropoly acids under very mild conditions. Copyright
Synthesis of 3-Acylpyrroles, 3-(Alkoxycarbonyl)pyrroles, 1,5,6,7-Tetrahydro-4H-indol-4-ones and 3-Benzoylpyridines Based on Staudinger-Aza-Wittig Reactions of 1,3-Dicarbonyl Compounds with 2- and 3-Azido-1,1-dialkoxy- alkanes
Bellur, Esen,Yawer, Mirza A.,Hussain, Ibrar,Riahi, Abdolmajid,Fatunsin, Olumide,Fischer, Christine,Langer, Peter
experimental part, p. 227 - 242 (2009/06/24)
The Staudinger-aza-Wittig reaction of 1,3-dicarbonyl compounds with 2-azido-1,1-diethoxyethane and subsequent cy- clization allowed an efficient synthesis of a variety of pyrroles, 1,5,6,7-tetrahydro-4H-indol-4-ones, and of a pyridine. Georg Thieme Verlag
TETRAHYDROINDOLONE DERIVATIVES AS GABAAALPHA5 LIGANDS FOR ENHANCING COGNITION
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, (2008/06/13)
Compounds according to Formula (I) or a pharmaceutically acceptable salt thereof are GABA-A Alpha 5 ligands useful for enhancing cognition: where A is C 1-6alkyl, C 2-6alkenyl, C 2-6alkynyl, C 3-6cycloalkyl, arylC 1-6alkyl, or aryl wherein the aryl group is optionally substituted by halogen, C 1-6alkyl, CF 3, CN, NO 2 or NH 2, NR 1R 10, S(O) pR 1, heteroarylC 1-6alkyl or heteroaryl where heteroaryl is a 5-or 6-membered heteroaromatic ring as defined for B; and B is phenyl or a 5-membered ring having one or two unsaturations containing 1, 2, 3, or 4 heteroatoms chosen from O, N and S provided that not more than one heteroatom is other than N, a 6-membered heteroaromatic ring containing 1, 2, 3 or 4 nitrogen atoms, each of which rings is optionally substituted by one or more substituents.