Selectivity in cycloadditions. 6. Cycloadditions of nitrile oxides to benzofuran. Regiochemistry

P Caramella, G Cellerino, KN Houk…

Index: Caramella,P. et al. Journal of Organic Chemistry, 1978 , vol. 43, p. 3006 - 3010

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Citation Number: 21

Abstract

Registry No.-1 BF4, 32865-43-3; 1 picrate, 66357-78-6; 1 Br, 7547-88-8; 3 (isomer 1: i, 66357-80-0; 3 (isomer 2), 66511-02-2; 4, 66357-82-2; 5, 66357-84-4; 6 Br (isomer l), 66357- 85-5; 6 Br (isomer 2), 66511-03-3; 6 Clod (isomer l), 66511-05-5; 6 Clod (isomer 2), 66537- 15-3; 9, 80-62-6; 12 (isomer l), 66357-87-7; 12 (isomer 21, 66511-07-7; 13 (isomer I.), 66357- 89-9; 13 (isomer 2), 66511-09-9; 14 (isomer l), 66357-91-3; 1.4 (isomer 2), 66511-11-3; 15 ...