The Journal of Organic Chemistry

Preparation of unsaturated. alpha.-chloro acids and intramolecular [2+ 2] cycloadditions of the chloroketenes derived from them

BB Snider, YS Kulkarni

Index: Snider, Barry B.; Kulkarni, Yashwant S. Journal of Organic Chemistry, 1987 , vol. 52, # 2 p. 307 - 310

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Citation Number: 24

Abstract

Ph). Anal. Calcd for C12H1405S: C, 53.32; H, 5.22; S, 11.86. Found C, 53.38; H, 5.29; S, 11.89. B-Methyl-y-oxo-y-phenylbutanoic acid (lb): mp 56-57 "C; 'H NMR (250 MHz, CDCl3) S 1.25 (d, J = 6 Hz, 3 H, @-CH3), 2.50 (dd, J = 16,4 Hz, 1 H, aH), 3.0 (dd, J = 16,9 Hz, a'-H), 3.8-4.0 (m, 1 H, 0-H), 7.48 (t, 2 H, Ph), 7.55 (t, 1 H, Ph), 7.96 (d, J = 6 Hz, 2 H, Ph). Anal. Calcd for CllH1203: C, 68.73; H, 6.30. Found: C, 68.68; H, 6.36. ~-Methyl-y-[4- ...