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Paper | Special issue | Vol 33, No. 2, 1992, pp.589-595
Published online, 1st January, 1970
DOI: 10.3987/COM-91-S46
Synthesis of 3-(2-Amino)benzylidene-2,5-piperazinedione and Its Conversion to 1-Azanaphthalenone and Spiro[indolinepiperazine]dione Derivtives

Yoshiaki Sato, Yoshiharu Nakajima, and Chung-gi Shin*

*Laboratory of Organic Chemistry, Faculty of Technology, Kanagawa University, 3-27-1 Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan

Abstract

Synthesis of 3-(2-amino)benzylidene-2,5-pipe- razinedione and its conversions by photolysis and by treatment with NBS gave 3-amino-1-azanaphthalen-2(H)-one and spiro [indoline-2(3H),2’-piperazine]-3’,6 ’-dione derivatives, respectively.