Synthesis of Spirodiones and Their Structure Determination by X-Ray Crystallography

S. Janardhanam Department of Organic Chemistry, University of Madras, Guindy Campus, Madras, 600 025, INDIA

A. Balakumar Department of Organic Chemistry, University of Madras, Guindy Campus, Madras, 600 025, INDIA

K. Rajagopalan Department of Organic Chemistry, University of Madras, Guindy Campus, Madras, 600 025, INDIA

L. Suganthi Bai Department of Organic Chemistry, University of Madras, Guindy Campus, Madras, 600 025, INDIA

K. Ravikumar Indian Institute of Chemical Technology, I & PC Division, Hyderabad, 500 007, INDIA

S. S. Rajan Department of Biophysics, University of Madras, Guindy Campus, Madras, 600 025, INDIA

Abstract

A rational synthesis of Spiro bicyclo (5,4) dec-2-ene-3-methyl-1,6-dione (1) and Spiro bicyclo (5,5) undec-2-ene-3-methyl-1,7-dione (2) from 2-acetyl cycloalkanone is described. Compounds (1) and (2) have very high potentials as important precursors to many naturally occurring bridged tricyclic compounds. A single crystal X-ray crystallographic study of compound (2) was carried out to establish the structure as chemical and spectral methods proved rather inadequate.

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Synthesis of Spirodiones and Their Structure Determination by X-Ray Crystallography

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Synthesis of Spirodiones and Their Structure Determination by X-Ray Crystallography

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