64286-53-9

Upstream product

• 109-72-8 n-butyllithium 
• 51954-35-9 1,1-Diiod-2-phenylcyclopropan 
• 3234-51-3 1,1-dibromo-2-phenylcyclopropane 
• 693-03-8 n-butyl magnesium bromide 
• 100-42-5 styrene 
• 592-41-6 1-hexene 
• 20282-89-7 ((tert-butylsulfonyl)methyl)benzene 
• 3112-88-7 Benzyl phenyl sulfone 
• 55027-60-6 2-(benzyloxymethyl)-1,1-dibromocyclopropane 

Relevant academic research and scientific papers

Gold Sulfonium Benzylide Complexes Undergo Efficient Benzylidene Transfer to Alkenes

The gold sulfonium benzylide complexes [(P1)AuCHPh(SR1R2)]+ {B[3,5-CF3C6H3]4}? [P1=P(tBu)2o-biphenyl; R1, R2=-(CH2)4- (1 a); R1=Et, R2=Ph (1 b); R1=R2=Ph (1 c)] were synthesized by reaction of the gold α-chloro benzyl complex (P1)AuCHClPh with sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate and excess sulfide. Complexes 1 undergo efficient benzylidene transfer to alkenes and DMSO under mild conditions without external activation. Kinetic analysis of the reaction of 1 c with styrene was consistent with the intermediacy of the cationic gold benzylidene complex [(P1)AuCHPh]+ (I).

Reaction of gem-dibromocyclopropanes or iodobenzofuran with trialkylmanganate

Treatment of gem-dibromocyclopropanes with trialkylmanganate, derived from manganese(II) chloride and three equivalents of Grignard reagent or alkyllithium, followed by an addition of electrophiles provided dialkylated cyclopropanes in good yields. It was

Conversion of non-activated alkenes into cyclopropanes with lithiated sulfones under nickel catalysis

Summary -Lithiated alkyl ierf-butyl sulfones convert alkenes into cyclopropane derivatives under nickel catalysis. The new reaction appears to differ from the known cyclopropanation reactions from both the stereochemical and the electronic points of view. Elsevier.

Dialkylation of gem-dibromocyclopropanes with trialkylmanganate and manganese(II) chloride-catalyzed reaction with alkylmagnesium bromide

Treatment of gem-dibromocyclopropanes with trialkylmanganate, derived from manganese(II) chloride and three equivalents of Grignard reagent or alkyllithium, followed by an addition of electrophiles provided dialkylated cyclopropanes in good yields. It was found the reaction with alkylmagnesium halide proceeded in the presence of a catalytic amount of manganese(II) chloride.

Stereoselective Carbon-Carbon Bond-Forming Reaction of 1,1-Dibromocyclopropanes via 1-Halocyclopropylzincates

Lithium trialkylzincates react efficiently with 1,1-dibromocyclopropanes 5 to give the corresponding alkylation products 7 nonstereoselectively.The reaction proceeds through a 1,2-alkyl migration of the intermediately formed zincate carbenoid 3 in an inve

Generation and alkylation reaction of lithium 1-halocyclopropylzincate

Lithium dialkyl (1-halocyclopropyl) zincates which are generated from 1, 1-dibromocyclopropanes undergo intramolecular alkylation to give 1-alkylcyclopropanes stereoselectively.