209806-11-1Relevant articles and documents
Tandem Wolff rearrangement-'α-cyclization of tertiary amines' sequence: Synthesis of some 1H-2-benzopyran derivatives
Leost, Francoise,Chantegrel, Bernard,Deshayes, Christian
, p. 6457 - 6474 (2007/10/03)
The thermolyses of dimethyl 1-diazo-2-oxo(2-(N,N-disubstituted aminomethyl)phenyl)-ethylphosphonates 6a-e of the related ester of 6f afford 1-disubstituted amino-1H-2-benzopyran derivatives 9a-f through a 3-step sequence involving Wolff rearrangement, [1,
Tandem Wolff rearrangement-'tert-amino effect' sequence: Synthesis of 2-oxoindolinium enolate and 1H-2-benzopyrane derivatives
Chantegrel,Deshayes,Faure
, p. 7859 - 7862 (2007/10/02)
The thermal decomposition of dimethyl 1-diazo-2-oxo-(2-N,N-disubstituted aminophenyl)ethylphosphonates 1 gave rise to 2-oxoindolinium enolates 3 resulting from a Wolff rearrangement followed by attack of the nitrogen atom on the intermediate ketene moiety