J. Zukerman-Schpector, F. C. Biaggio, A. R. Rufino
Mar 15, 1999
Citations
0
Influential Citations
2
Citations
Journal
Acta Crystallographica Section C-crystal Structure Communications
Abstract
In 3-methyl-2-oxa-6-azaspiro[4.5]decane-1,7-dione, (1) (C 9 H 13 NO 3 ), and 3-methyl-2-oxa-6-azaspiro[4.6]undecane-1,7-dione, (2) (C 10 H 15 NO 3 ), the lactone rings are in an envelope conformation. The lactam rings are in a distorted half-chair conformation in compound (1) and in a chair conformation in (2). Molecules are joined through hydrogen bonds in both compounds.