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A new synthesis of 4-phosphorylchromenes from 3-nitrochromenes

✍ Scribed by Noboru Ono; Natsuko Banshou; Satoshi Ito; Takashi Murashima; Takuji Ogawa

Publisher
Journal of Heterocyclic Chemistry
Year
1997
Tongue
English
Weight
266 KB
Volume
34
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

3‐Nitrochromenes are readily converted into 4‐phosphorylchromenes on treatment with dialkyl phosphite in the presence of triethylamine in 60–70% yield. This method provides a general method for the preparation of alkenyl phosphonates from nitroalkenes and dialkyl phosphite.

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