Synthesis 2007(21): 3376-3384  
DOI: 10.1055/s-2007-990809
PAPER
© Georg Thieme Verlag Stuttgart · New York

Synthesis of Methyl 2-Amino-3H-1-benzazepine-4-carboxylates and 2-(Cyanomethyl)-2,3-dihydro-1H-indole-2-carboxylates from Morita-Baylis-Hillman Acetates of 2-(Acylamino)benzaldehydes

Hee Nam Lim, Young Seok Song, Kee-Jung Lee*
Organic Synthesis Laboratory, Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea
Fax: +82(2)22984101; e-Mail: leekj@hanyang.ac.kr;
Further Information

Publication History

Received 19 July 2007
Publication Date:
21 September 2007 (online)

Abstract

Methyl 2-Amino-3H-1-benzazepine-4-carboxylates or methyl 2-(cyanomethyl)-2,3-dihydro-1H-indole-2-carboxylates were prepared from the reaction of 3-[2-formamido-, 2-acetamido-, or 2-(propanoylamino)phenyl]-substituted methyl 2-(cyanomethyl)propenoates with sodium methoxide in methanol, respectively. The latter were readily obtained from the Morita-Baylis-Hillman reaction of N-protected 2-aminobenzaldehydes with methyl acrylate followed by acetylation and cyanation.