83438-76-0

Upstream product

• 83438-75-9 Benzhydryl-methyl-(2,4,6-trimethyl-phenyl)-phosphane 
• 83438-74-8 C₂₃H₂₄IP 
• 67565-91-7 mesityldiphenylmethylenephoshine 
• 501418-47-9 C₂₃H₂₄LiP 
• 90929-10-5 diethylamino(diphenylmethyl)-2,4,6-trimethylphenylphosphine 
• 74-88-4 methyl iodide 

Relevant academic research and scientific papers

Reactivity patterns of benzhydryl(mesityl)phosphane oxide–a potential intermediate in carbonyl-carbonyl coupling reactions?

Benzhydryl(mesityl)phosphane oxide 2-H is prepared and its deprotonation and nucleophilicity behavior investigated. Treatment of lithium salts of 2-H with MeI results in methylation at the P-center while the benzyl carbon is not affected. Only upon double lithiation, it is possible to methylate also the benzyl carbon. Di-anion 2-2Li is reactive towards benzaldehyde to afford moderate amounts of triphenylethene after basic work.

A NUCLEOPHILIC REACTION OF A PHOSPHAALKENE: THE METHYLATION OF MESITYLDIPENYLMETHYLENEPHOSPHINE

The reaction of the title compound (1) with methyl iodide gives the ylide 3 and the phosphonium salt 4.The intermediate formation of the phosphoniaalkene 2 is postulated.