Synthesis, stereochemistry, and transformations of (E)-1, 2-bis (benzenesulfonyl) ethylene cycloadducts to 2-oxa substituted 1, 3-dienes

…, V Lucchini, M Zamai, G Modena…

Index: Lucchi, Ottorino De; Piccolrovazzi, Nicoletta; Modena, Giorgio Tetrahedron Letters, 1986 , vol. 27, # 36 p. 4347 - 4350

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Citation Number: 10

Abstract

The cycloaddition of (E)-1, 2-bis (benzenesulfonyl) ethylene (2) to 2-acetoxy-and 2-silyloxy- 1, 3-cyclodienes occurs in high yields and with high steroselectivity. Structure assignment has been based largely on 1H nmr nuclear Overhauser effect (nOe) experiments on the