1886-70-0

Upstream product

• 579-43-1 (1S,2R)-1,2-diphenylethane-1,2-diol 
• 492-70-6 1,2-diphenyl-1,2-ethanediol 
• 655-48-1 DL-1,2-diphenylethane-1,2-diol 
• 98-59-9 p-toluenesulfonyl chloride 
• 645-49-8 cis-stilben 
• 27126-76-7 [hydroxy(tosyloxy)iodo]benzene 
• 103-30-0 (E)-1,2-diphenyl-ethene 

Relevant academic research and scientific papers

Tosylation of alcohols

A process is disclosed for the preparation of aliphatic toluenesulfonates. The process comprises reacting a solution of an aliphatic alcohol and an alkali metal hydroxide in a solution of an aprotic solvent with toluenesulfonyl chloride for from about 1 to about 12 hours and forming said aliphatic toluenesulfonate. These compounds are useful intermediates in the preparation of complex organic molecules.

The Mechanism of Asymmetric Hydrogenation. Chiral Bis(diphenylphosphino)-α-phenylalkane Complexes in Catalytic and Structural Studies

(R)-1,2-Bis(diphenylphosphino)phenylethane has been synthesised in good overall yield from (S)-mandelic acid ; its cationic rhodium(I) solvated complex has been shown to be effective in catalytic asymmetric hydrogenation with optical yields of up to 88percent having been observed.The n.m.r. spectra of complexes of this phosphine are discussed.Racemic (R*,R*)-1,3-bis(diphenylphosphino)-1,3-diphenylpropane and (R*,R*)-1,4-bis(diphenylphosphino)-1,4-diphenylbutane have been prepared.These form a range of rhodium complexes with dehydroamino-acids whose structures may be assigned on the basis of characteristic n.m.r.P-Rh and P-P coupling constants.

Functionalization of Alkenes and Alkynes with benzene. Bis(tosyloxy)alkanes, Vinylaryliodonium Tosylates, and Alkynylaryliodonium Tosylates

benzene (1) reacts with various alkenes to give bis(tosyloxy)alkanes and with various alkynes to give either vinylaryliodoniumtosylates or alkynylaryliodonium tosylates.In the presence of 1, 1,1-diphenylethylene undergoes oxidative rearrangement and phenyliodination.