Premium
Syntheses of triazolo[6,7‐ d ]phthalide and triazolo[6,7‐ d ]dihydrocoumarin
Author(s) -
Katritzky Alan R.,
Ji FuBao,
Fan WeiQiang,
Beretta Paolo,
Bertoldi M.
Publication year - 1992
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.5570290624
Subject(s) - phthalide , chemistry , yield (engineering) , tautomer , carbon 13 nmr , bicyclic molecule , stereochemistry , organic chemistry , materials science , metallurgy
Triazolo[6,7‐ d ]phthalide has been synthesized in a seven step sequence from phthalide in 24% overall yield, and triazolo[6,7‐ d ]dihydrocoumarin has been prepared in nine steps from dihydrocoumarin in 20% overall yield. The 1 H and 13 C nmr spectra and the tautomeric equilibria of the final compounds and intermediates are discussed.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom