作者:T. Boehlow、A. De la Cruz、N. P. Rath、C. D. Spilling
DOI:10.1107/s0108270197010408
日期:1997.12.15
The crystal structure of the racemic title compound, C18H20NO6P (m.p. 428-431 K), has been determined by X-ray diffraction. The title compound consists of a tetrahedral P atom bonded to two methoxy groups, and an alkyl chain. The alkyl chain is substituted at position 1 with a carbamate and with an epoxide at positions 2 and 3. The relative configuration of the l-carbamate and 2,3-epoxide substituents was confirmed as anti (1S,2R,3S). The crystal structure contains an enantiomeric pair with two intermolecular hydrogen bonds in a 14-membered ring. The hydrogen bands are formed between the P=O of one enantiomer and the N-H of the other.
Stereoselective Reactions of Allylic Hydroxy Phosphonates
作者:M. Antonette De La Cruz、Hossein Shabany、Christopher D. Spilling
DOI:10.1080/10426509908546212
日期:1999.1.1
The stereochemical outcome of the palladium catalyzed addition of nucleophiles to the carbonate derivative, the [3,3] rearrangement of the imidate and carbamate derivatives, and the epoxidation and cyclopropanation of hydroxy allylicphosphonates is presented.