Z. Walaszek, D. Horton
Jul 1, 1982
Citations
0
Influential Citations
28
Citations
Journal
Carbohydrate Research
Abstract
Abstract The conformations of d-glucono-, d-mannono-, d-gulono-, and d-galactono-1,4-lactone in solution were studied by 1 H- and 13 C-n.m.r. spectroscopy. The two equilibrating, envelope forms [ 3 E (D) and E 3 (D)] of the lactone ring are weighted strongly in favor of the conformation having the OH-2 group quasiequatorially oriented, except for d-glucono-1,4-lactone. Side-chain CHOHCH 2 OH groups adopt orientations devoid of unfavorable, 1,3-parallel interactions of OH groups.