36050-91-6

Upstream product

• 693-03-8 n-butyl magnesium bromide 
• 75-16-1 methylmagnesium bromide 
• 119841-34-8 cis-2,10-dimethyl-<1,2,3>benzothiadiphospholo<2,3-b><1,2,3>benzothiadiphosphole 
• 109-72-8 n-butyllithium 
• 109-65-9 1-bromo-butane 
• 1486-28-8 diphenyl(methyl)phosphine 
• 603-35-0 triphenylphosphine 

Relevant academic research and scientific papers

METHOD FOR GENERATING ALKALI METAL PHOSPHIDES THROUGH REDUCTION OF TRI-SUBSTITUTED PHOSPHINES WITH ALKALI METAL POROUS OXIDE COMPOSITIONS

Alkali metal phosphides are useful intermediates for the synthesis of a variety of phosphine derivatives. Many of these phosphine derivatives are important industrial compounds with applications as synthetic intermediates or as ligands in a variety of homogeneous and heterogeneous synthetic processes. Alkali metal diarylphosphides in particular have been used in the synthesis of many phosphine ligands of importance. The invention relates to methods for generating and using alkali metal phosphides by reduction of the phosphorus sigma bonds of tri-substituted phosphorus derivatives with Group I metal/porous oxide compositions. Formula (I).

Highly atom-economic one-pot formation of three different C-P bonds: General synthesis of acyclic tertiary phosphine sulfides

The reaction of benzothiadiphosphole 1 with an equimolar mixture of R 1MgBr and R2MgBr gave intermediate A′, which, after only 4-5 min, was treated with an equimolar amount of R3MgBr, giving the asymmetric phosphine PR1R2R3 in 45% overall yield (75-80% yield when R1 = R2 and 85-90% yield when R1 = R2 = R3) and the byproduct 6 in 90% yield. The treatment of 6 with PCl3 quantitatively regenerates the starting reagent 1. Treatment of the phosphines with elemental sulfur gave the corresponding sulfides.

Preparation of Alkylmethylphenylphosphines by the Method of Hewertson and Watson

The reaction of C6H5(CH3)PNa with some alkyl halides in liquid ammonia was studied.The resulting phosphines were characterized by elemental analyses, NMR spectra, and by the reaction with trimethylsilyl azide giving trimethylsilylimino triorganophosphoranes. - Keywords: Alkylmethylphenylphosphines, N-Trimethylsilylimino Triorganophosphoranes, NMR Spectra

PHOSPHORORGANISCHE VERBINDUNGEN 104. TERTIAERE PHOSPHINE BZW. ARSINE DURCH REDUKTIVE SPALTUNG QUARTAERER PHOSPHONIUM- UND ARSONIUMSALZE MIT ALKALIAMALGAMEN

The reductive cleavage of achiral and optical active quaternary phosphonium and arsonium salts with alkali metal amalgams forming tertiary phosphines and tertiary arsines succeeds in high yields at room-temperature with retention of configuration.In the r

Stereospecific Synthesis of Diastereoisomerically Pure (-)-(RP)-O-Mentyl Methylphenylphosphinite and Ethylphenylphosphinite: Key Intermediates in Synthesis of Chiral Tertiary Phosphines

The reaction of the diastereoisomerically pure (-)-(RP)-O-mentyl methylphenylphosphinite (9) and (-)-(RP)-O-mentyl ethylphenylphosphinite (2) with organolithium reagents has been found to give chiral tertiary phosphines (10) and (11) with a very high optical purity.