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Polymethyl derivatives of furo[3,4‐ c ]pyran4‐one, furo[3,4‐ c ] pyridin‐4‐one and pyrrolo[3,4‐ c ]pyran‐4‐one
Author(s) -
Giardina Dario,
Ballini Roberto,
Ferappi Marcello,
Casini Giovanni
Publication year - 1978
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.5570150617
Subject(s) - chemistry , methylamine , pyran , adduct , dehydration , ammonia , medicinal chemistry , nitrogen , organic chemistry , biochemistry
The: title compounds were prepared from Michael adducts, obtained from acetoacetic esters and trans ‐3‐hexene‐2,5‐ dione , and from the corresponding dehydration products, by direct cyclization to oxygen rings or by reaction with ammonia (or methylamine) to give nitrogen rings.