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Regioselective Preparation of Diethyl 3,4-Disubstituted 1,5-Dihydro-5-oxo-2H-pyrrol-2-ylphosphonates and Their Coupling with Aldehydes. Application to the Synthesis of C/D-Rings Component of Phycocyanobilin

フォーマット:
論文
責任表示:
Ngwe, Hla ; Kinoshita, Hideki ; Inomata, Katsuhiko
言語:
英語
出版情報:
The Chemical Society of Japan = 日本化学会, 1994-01-01
著者名:
掲載情報:
Bulletin of the Chemical Society of Japan
ISSN:
0009-2673  CiNii Articles  Webcat Plus  JAIRO
巻:
67
通号:
12
開始ページ:
3320
終了ページ:
3326
バージョン:
publisher
概要:
Diethyl 3,4-disubstituted 1,5-dihydro-5-oxo-2H-pyrrol-2-ylphosphonates were regioselectively prepared by acidic hydrolysis of diethyl 3,4-disubstituted 5-bromo-2-pyrrolylphosphonates. The resulting 1,5-dihydro-2H-pyrrol-2-ones readily underwent the coupling reaction with various aldehydes to afford the corresponding 1,5-dihydro-5-methylene-2H-pyrrol-2-ones including pyrromethenone derivatives in good yields. A series of these reactions was successfully applied to the synthesis of C/D-rings component of phycocyanobilin. 続きを見る
URL:
http://hdl.handle.net/2297/38255

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