1. Synthesis of Tertiary Cyclobutanols through Stereoselective Ring Expansion of Oxaspiropentanes Induced by Grignard Reagents
Angela M. Bernard, Costantino Floris, Angelo Frongia and Pier P. Piras
Tetrahedron
Volume 56, Issue 26, 23 June 2000, Pages 4555-4563
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http://dx.doi.org/10.1016/S0040-4020(00)00369-0