Crystal and molecular structure of 2e-diethylamino-3e,4e-dimethyl-5e-phenyl-2a-thio-1,3,2-oxazaphospholane

The results of an x-ray structural investigation of 2e-diethylamino-3e,4e-dimethyl-5e-phenyl-2a-thio-1,3,2-oxazaphospholane are discussed. It has been shown that the conformation of the 5-membered ring is that of a half-chair.Institute of Organic Synthesis and Coal Chemistry, Kazkh SSR Academy of Sciences, Karganda. A. N. Nesmeyanov Institute of Heteroorganic Compounds, USSR Academy of Sciences, Moscow. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 386–389, May–June, 1990.