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ChemInform Abstract: First Thermal Chemoselective Synthesis of Novel 2′,3′-Dihydro-3′-hydroxybenzofuranylcoumarins.

✍ Scribed by L. A. Shastri; M. V. Kulkarni; V. Gupta; N. Sharma


Publisher
John Wiley and Sons
Year
2008
Weight
26 KB
Volume
39
Category
Article
ISSN
0931-7597

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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.