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Reactions of 4,6‐bis(acetyl)resorcinol with alkoxycarbonylalkylidene(triphenyl)phosphoranes. Preparation of coumarin derivatives
Author(s) -
Nicolaides D. N.,
Fylaktakidou K. C.,
BezergiannidouBalouktsi C.,
Litinas K. E.
Publication year - 1994
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570310129
Subject(s) - chemistry , coumarin , ylide , resorcinol , yield (engineering) , organic chemistry , medicinal chemistry , metallurgy , materials science
Reaction of compound 1 with ylide 2a affords compounds 3a, 3b and coumarins 4a, 5a, 5b, 6a in 77% total yield. Reaction of 1 with ylide 2b affords coumarin 4b . The acetylderivatives obtained, react further with ylides 2a‐c to give pyrano[3,2‐ g ]chromene‐2,8‐diones 6b‐d .