Tetrahedron letters

Conformation of succinic acid derivatives by double 13 C-labelling

FM Menger, LH Lee

Index: Menger, F.M.; Lee, L. H. Tetrahedron Letters, 1988 , vol. 29, # 7 p. 757 - 760

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Citation Number: 3

Abstract

Summary: Three-bonded carbon/carbon couplings (3J ) are used, ip.,conjunction with MM2 calculations, to examine conformational equilibria% several di- C-labelled succlnic acid derivatives. ... Three-bonded carbon/carbon couplings (3Jcc) respond to dihedral relationships in a typical ... Karplus fashion (ie maxima near 0" and 180' and a minimum near 90").1'2 -- ... CCC-COO systems, 3J(O"> - 2 Ha, 3J(60") - 0.5 Ha, 3J(90") = 0 Hz, and 3J(180") = 4-5 ...