Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 20, Issue 41, Pages 8145-8148Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2ob01286c
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- UGC, New Delhi
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A new BF3 center dot OEt2-catalyzed approach has been developed for the synthesis of 2,2'-spirobi-2H-1-benzopyrancarboxylates. The reaction involves the formation of C-C and C-O bonds simultaneously in one pot. Structure confirmation of compound 3c was achieved by single crystal X-ray analysis.
A new BF3 center dot OEt2-catalyzed approach was developed for the construction of 2,2'-spirobi-2H-1-benzopyrancarboxylates by reacting ethyl 2-(chloromethyl)-2-hydroxy-2H-chromene-3-carboxylates with salicylaldehydes. The reactions proceeded through the formation of C-C and C-O bonds in one pot. Structure assignment of compound 3c was confirmed by single crystal X-ray analysis.
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