82253-12-1

Upstream product

• 81236-72-8 C₁₀H₁₉LiSi 
• 100-52-7 benzaldehyde 
• 51346-95-3 PhSO₂C(Li)HPh 
• 666714-45-0 7-benzenesulfinyl-7-chloro-bicyclo[4.1.0]heptane 
• 71161-54-1 1-(7-Brombicyclo<4.1.0>hept-7-yl)-1-phenylmethanol 
• 43131-19-7 exo-Brom-endo-lithionorcaran 
• 82253-07-4 1-(7-Brombicyclo<4.1.0>hept-7-yl)phenylmethyl-trimethylsilyl-ether 
• 99327-89-6 [7-(Hydroxy-phenyl-methyl)-bicyclo[4.1.0]hept-7-yl]-phosphonic acid diethyl ester 

Relevant academic research and scientific papers

A novel synthetic method for alkylidenecyclopropanes based on the reaction of magnesium cyclopropylidenes with lithium α-sulfonyl carbanions

Treatment of 1-chlorocyclopropyl phenyl sulfoxides with isopropylmagnesium chloride at low temperature gave magnesium cyclopropylidenes. The reaction of the generated carbenoids with lithium α-sulfonyl carbanions was found to afford alkylidenecyclopropane

Preparation of Substituted Methylenecyclopropanes from gem.-Dibromocyclopropanes and Carbonyl Derivatives

The bromohydrins (C, 2, 5) from α-bromolithiocyclopropanes and aldehydes or ketones can be O-silylated quantitatively by chloro- or iodotrimethylsilane/hexamethyldisilazane/pyridine.Treatment of the product (3, 6) thus obtained with tert-butyllithium at -

SYNTHESIS AND REACTIONS OF 1-BROMOCYCLOPROPYLTRIMETHYLSILANE DERIVATIVES

The title compounds derived from 1,1-dibromocyclopropanes are transformed into (1) cyclopropyltrimethylsilanes via 1-trimethylsilylcyclopropyllithium species, (2) 1-alkylidenecyclopropanes by the Peterson-olefination, and (3) 1-acetyl(or 1-allyl)cyclopropylsilanes with dibutylcopperlithium and acetyl chloride (or allyl bromide).