133471-51-9

Upstream product

• 133471-45-1 (P_S*,2S^*)-Ethyl 2-benzylphospholanate 
• 133471-45-1 (P_S*,2R^*)-Ethyl 2-benzylphospholanate 
• 91166-39-1 (E)-penta-2,4-dien-1-ylbenzene 
• 143237-90-5 (2S*,5S*)-1-(N,N-diisopropylamino)-2,5-dibenzyl-1-oxophospholane 
• 133471-49-5 Ethyl (2S^*,5S^*)-2,5-dibenzylphospholanate 
• 100-39-0 benzyl bromide 
• 143237-81-4 (1S*,2R*)-1-(N,N-diisopropylamino)-1-oxo-2-benzyl-Δ³-phospholene 
• 143237-85-8 (1R*,2S*)-1-(N,N-diisopropylamino)-1-oxo-2-benzyl-phospholane 

Relevant academic research and scientific papers

PREPARATION OF (2S*,5S*)-2,5-DIBENZYL PHOSPHOLANIC ACID.

Phosphenium ion 1 underwent cheletropic cycloaddition with E-1-benzylbutadiene 2b to afford cyclic phosphonium salts produced phosphinamides 6a and 6b in a 3:1 ratio.Three chemical steps coverted phosphinamide 6a to the title compound 12b.

Preparation of (2S*,5S*)-2,5-Dibenzylphosphonic Acid

The cheletropic cycloaddition of +AlCl4- with 1-substituted dienes at 0 deg C afforded 1-(N,N-diisopropylamino)-1-chloro-2-alkyl-Δ3-phospholenium tetrachloroaluminates.The stereoselectivity of these reactions ranged from 5:1 to 10

Preparation, Alkylation Reactions, and Conformational Analysis of Esters of Phospholanic Acid. Preparation and Reactivity of (2S*,5S*)-1,2,5-Tribenzyl-1-oxophospholane

Optimum conditions for the reaction of 1,4-butanediylmagnesium dibromide and alkyl phosphorodichloridates are described.The general geometric requirements of the cyclization reaction transition state are discussed.Alkylation reactions of phospholanate est