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IJC-B Vol.44B(12) December 2005] >


Title: Condensation of reactive phenols with aromatic 1,2-diketones: A single step protocol for synthesis of benzo-fused -lactones
Authors: Mashraqui, Sabir H
Patil, Mamta B
Mistry, Hitesh D
Ashraf, Mohamed
Sundaram, Subramanian
Keywords: 1,2-Diketones
phenols
-lactones
condensation
aryl migration
Issue Date: Dec-2005
Publisher: CSIR
IPC CodeInt.Cl.7 C 07 C
Abstract: The condensation of certain reactive phenols with aromatic 1,2-diketones has been investigated under acid / Lewis acid catalysis. The reaction has provided in acceptable yields a single major product, identified as benzo-fused -lactone. 1,2-Aryl migration via the intermediacy of a cyclic zwitterionic intermediate is proposed to account for the formation of the -lactone products.
Page(s): 2545-2549
ISSN: 0975-0983(Online); 0376-4699(Print)
Source:IJC-B Vol.44B(12) December 2005]

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