Tetrahedron letters

Highly selective γ-lactone syntheses by intramolecular carbenoid carbon-hydrogen insertion in rhodium (II) carboxylate and rhodium (II) carboxamide catalyzed …

MP Doyle, V Bagheri, MM Pearson, JD Edwards

Index: Doyle, Michael P.; Bagheri, Vahid; Pearson, Matthew M.; Edwards, John D. Tetrahedron Letters, 1989 , vol. 30, # 50 p. 7001 - 7004

Full Text: HTML

Citation Number: 66

Abstract

... 14; MP Doyle, SN Mahapatro ... Chem., 26 (1987), p. 3070. ... 1 H NMR (CDCl 3 , 300 MHz): δ 3.71 (t, J = 10.7 Hz, CHO), 3.44 (d, J = 12.4 Hz, CHCO), 2.41 (s, CH 3 CO), 2.31 (d of t, J = 12.4, 10.7, 10.7 Hz, 1H), 2.00-1.88 (m, 1H), 1.84-1.62 (m, 3H), 1.58-1.38 (m, 1H), 1.23-1.00 (m, 2H), 0.95 (d, J = 7.0 Hz, 3H), 0.89 (d, J = 7.0 Hz, 3H), and 0.82 (d, J = 6.6 Hz, 3H); 13 C NMR (CDCl 3 , 75 MHz): δ 202.0, 172.5, 84.5, 58.7, 52.2, 46.6, 35.4, 34.4, 30.6, 28.6, 25.0, 19.8, 19.7 ...