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ChemInform Abstract: Regioselective Synthesis of Pyrano(3,2-f)chromen-2(7H)-ones.

โœ Scribed by K. C. MAJUMDAR; P. CHATTERJEE


Publisher
John Wiley and Sons
Year
2010
Weight
28 KB
Volume
28
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Synthesis of 2,3-Di
โœ M. V. VOVK; A. V. BOL'BUT ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› John Wiley and Sons โš– 26 KB ๐Ÿ‘ 1 views

Synthesis of 2,3-Dihydro-3H-pyrano[2,3-f ]-1,3-benzoxazines. -The cyclocondensation of 7-hydroxycoumarins (I) with chlorocarbonylisocyanate (II) represents a facile way to the hitherto unknown angular pyranobenzoxazines (III). -(VOVK, M.