OXAZOLIDINES. 1. BASIC CATALYTIC DISPROPORTIONATION OF CYCLOHEXANOSPIRO-2-OXAZOLIDINES: SYNTHESIS OF N-SUBSTITUTED 4,5,6,7-TETRAHYDROINDOLES
It has been shown that the basic catalytic disproportionation of cyclohexanospiro-2-oxazolidines in the presence of potasium hydroxide or sodium methylate leads to N-substituted 4,5,6,7-tetrahydroindoles with a yield of up to 73percent.The influence of the character of substituents at the nitrogen atom of oxazolidine on the course of the reaction has been established.
Kukharev, B.F.,Stankevich, V.K.,Kukhareva, V.A.
p. 437 - 439
(2007/10/02)
Pyrrol-Anellierung von Ketonen durch Addition deprotonierter Imine an 2-(N-Methylanilino)-acrylonitrile
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Ahlbrecht, Hubertus,Daacke, Axel von
p. 610 - 614
(2007/10/02)
A Facile Route to 2-Substituted Indoles
Imines, derived from cyclohexanone and alkylamines, react with α-chloroacrylonitrile in the presence of triethylamine to give products which upon pyrolysis afford 1-alkyl-4,5,6,7-tetrahydroindoles.Substitution at the 2-position of these compounds followed
Madsen, J.Oe.,Meldal. M.,Mortensen. S.,Olsson, B.
p. 77 - 82
(2007/10/02)
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