Carbon-13 nuclear magnetic resonance spe
β
E. Kiehlmann; A. S. Tracey
π
Article
π
1988
π
John Wiley and Sons
π
English
β 736 KB
The "C NMR spectra of 21 catechin derivatives substituted at C-6/C-S by bromine and/or hydrogen and at oxygen by methyl, acetyl and/or hydrogen have been analysed in deuteriated acetone and chloroform. When a methoxy group is flanked by two bulky orrho substituents (6-Br and C4), the M e 0 and ortho