7608-19-7

Upstream product

• 7608-17-5 2-diphenylphosphino-1-phenylethyne 
• 1483-82-5 phenylethynyl chloride 
• 20472-49-5 ethyl diphenylthiophosphinite 
• 6738-06-3 phenylethynylmagnesium bromide 
• 1079-66-9 chloro-diphenylphosphine 
• 536-74-3 phenylacetylene 
• 65567-06-8 lithium diphenylphosphide 
• 829-85-6 diphenylphosphane 
• 1101-41-3 Tetraphenyldiphosphin 

Downstream Products

• 943443-52-5 [2,2-di(methoxycarbonyl)-6-phenyl-5-indanyl]diphenylphosphine sulfide 
• 1138349-21-9 C₃₈H₃₀BrNP₂S 
• 1138349-17-3 C₂₇H₂₃OPS₂ 
• 1138349-12-8 C₃₉H₃₃NP₂S 
• 1138349-20-8 C₃₉H₃₃NOP₂S 
• 1138349-10-6 C₂₇H₂₃PS₂ 

Relevant academic research and scientific papers

Br?nsted Base Mediated Stereoselective Diphosphination of Terminal Alkynes with Diphosphanes

A Br?nsted base mediated stereoselective diphosphination of terminal alkynes with diphosphanes proceeds to deliver the corresponding (E)-1,2-diphosphinoethenes in good yields. The reaction of aromatic alkynes occurs efficiently in the presence of a catalytic amount of LiO-t-Bu while MN(TMS)2 (M = Li or Na) gave better results in the case of aliphatic substrates. The Br?nsted base mediated protocol can offer a good alternative to precedented transition-metal-catalyzed or radical-promoted approaches to the 1,2-diphosphinoethene framework of potent interest in catalysis and coordination chemistry.

Synthesis of bulky phosphines by rhodium-catalyzed formal [2 + 2 + 2] cycloaddition reactions of tethered diynes with 1-alkynylphosphine sulfides

The reaction of tethered diynes with 1-alkynylphosphine sulfides under rhodium catalysis provides the corresponding phosphine sulfides having a bulky aryl group. The following desulfidation yields bulky phosphines that will potentially serve as ligands in