Abstract We report a rapid, efficient, economic, environmentally benign, and easy to scale-up method for the synthesis of phosphonamide derivatives using ultrasound irradiation, under catalyst and solvent-freeconditions starting from the corresponding amine and phenyl phosphonic dichloride. The reaction was achieved in excellent isolated yield in a short reaction time at room temperature. The structures
抽象的 我们报告了一种快速,有效,经济,环境友好,易于按比例放大的方法,该方法使用超声辐射,在无催化剂和无溶剂条件下,从相应的胺和苯基二氯化膦开始合成膦酰胺衍生物。在室温下,在短的反应时间内以优异的分离产率实现了该反应。通过元素分析以及IR和1 H,13 C,31 P NMR光谱数据和质谱确认合成的化合物的结构。
Facile syntheses of the metallacyclic rings Pt–C–P–C, Pt–N–P–N and Pt–N–S–N; crystal structures of [Pt{CH(COPh)P(O)(Ph)CH(COPh)}(PPh<sub>3</sub>)<sub>2</sub>] and [Pt{C(CO<sub>2</sub>Me)C(CO<sub>2</sub>Me)NHS(O)<sub>2</sub>NH}(PMePh<sub>2</sub>)<sub>2</sub>]
作者:Raymond D. W. Kemmitt、Simon Mason、Mark R. Moore、John Fawcett、David R. Russell
DOI:10.1039/c39900001535
日期:——
Reaction of PhCOCH2P(O)(Ph)CH2COPh, RNHP(O)(Ph)NHR or RNHS(O)2NHR (R = H or Ph) with cis-[PtCl2L2](L = PPh3 or PMePh2; L2= Ph2PCH2CH2PPh2 or cycloocta-1,5-diene) in the presence of silver(I) oxide gives metallacyclic complexes of the type [[graphic omitted]H(COPh)}L2], [[graphic omitted]R} L2] or [[graphic omitted]R}L2] respectively; single crystal X-ray studies on [[graphic omitted]H(COPh)}(PPh3)2] and the insertion product [[graphic omitted]H}(PMePh2)2] establish the presence of puckered metallacycles, the oxygen of the platinaphosphetane-3-oxide adopting an equatorial environment.
The synthesis and X-ray structural characterisation of an unusual seven-membered diaza-phospha-tetrathia heterocycle
作者:Steven E. Bottle、Raymond C. Bott、Ian D. Jenkins、Colin H. L. Kennard、Graham Smith、Adam P. Wells
DOI:10.1039/c39930001684
日期:——
When the di-aryl or di-alkyl phenyl phosphonamide (RNH)2P(O)Ph 1 is treated with sulfur(I) chloride (S2Cl2) in base, the product is an unexpected, unusual seven-membered diazatetrathiaphospha heterocycle 3; the X-ray structure and NMR spectra of these two unique heterocycles indicate that they exist in a pseudo-chair conformation with steric congestion limiting the freedom of rotation of the phenyl group; and represent the first known examples of this hetero-ring system.