Reaction of olefins with CHFBr2 and BuLi gave stereospecific cis and trans isomers of alkyl-substituted fluorocyclopropanes (I, R, R1, R2, R3 = H, Me, Pr, C5H11). The addn. was also stereoselective with preferred formation of the syn isomers of I. Therefore, London dispersion forces seem not to be the origin of the syn stereoselectivity obsd. with carbene addn. reactions. [on SciFinder (R)]
Titre
Monofluorocarben
Publié dans
Chemische Berichte
Volume
104
Numéro
6
Pages
1934-41
Date
1971
Note
CAN 75:76195 24 Alicyclic Compounds Org.-Chem. Inst.,Univ. Heidelberg,Heidelberg,Fed. Rep. Ger. Journal 0009-2940 written in German. 6519-46-6; 6547-42-8 Role: RCT (Reactant), RACT (Reactant or reagent) (mixture with isomer); 16646-97-2P; 16646-98-3P; 17370-50-2P; 19144-90-2P; 19144-91-3P; 22842-15-5P; 22842-16-6P; 33047-46-0P; 33047-47-1P; 33047-49-3P; 33047-50-6P; 33190-24-8P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of); 2465-56-7D (Methylene) Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with olefins)
Date de création de la notice
2006-03-03