Preparation and alkylation of cyclic β-trimethylstannyl α, β-unsaturated esters. A new, general annulation sequence
E Piers, LAT Hoi
Index: Piers, Edward; Tse, Hoi Lun Allan Tetrahedron Letters, 1984 , vol. 25, # 30 p. 3155 - 3158
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Citation Number: 44
Abstract
Abstract The key steps of a newly developed annulation method involve (a) reaction of cyclic β-trifluoromethanesulfonyloxy α, β-unsaturated esters (eg 14–16) with lithium (phenylthio)( trimethylstannyl) cuprate,(b) alkylation of the resultant products (eg 17–19) with 1, ω-
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