65325-81-7Relevant academic research and scientific papers
Is a phase transfer catalyst really needed for gem-dihalocyclopropanation of alkenes with haloforms in the presence of alkali metal hydroxide?
Karwowska,Jonczyk
, p. 45 - 49 (2008/02/11)
Chloroform, bromoform and dibromochloromethane react with alkenes in the presence of cone. aq. sodium hydroxide, without phase-transfer catalyst, giving gem-dihalocyclopropanes. The process is particularly useful for preparation of gem-bromochlorocyclopropanes which are formed in good yields and in high selectivity.
A simple synthesis of gem-bromochlorocyclopropanes via phase-transfer catalysis
Balcerzak,Jonczyk
, p. 857 - 858 (2007/10/02)
Substituted 1-bromo-1-chlorocyclopropanes 2 were synthesized from dibromomethane, phenyltrichloromethane trichloride and alkenes 1 in the presence of 60% aqueous potassium hydroxide and tetrabutylammonium hydrogen sulfate as a catalyst (PTC system), in good yields.
Formation of gem-Dichlorocyclopropanes from Perhalomethanes and Alkenes in a Phase-Transfer Catalytic (PTC) System
Fedorynski, Michal,Dziklinska, Anna,Jonczyk, Andrzej
, p. 297 - 298 (2007/10/02)
Perhalomethanes YCCl3 (Y = Cl, Br) react with alkenes in the phase-transfer catalytic system to give gem-dichlorocyclopropanes.
A CONVENIENT METHOD FOR SYNTHESIS OF GEM-BROMOCHLOROCYCLOPROPANES
Xu, Linxiao,Tao, Fenggang
, p. 2117 - 2122 (2007/10/02)
Gem-bromochlorocyclopropanes can be prepared by a convenient method based on the reactions of the mixtures of haloforms and tetrahalomethanes or hexahaloethane with powdered sodium hydroxide.
