Reaction of HCClF2 (I) or Cl2CF2 (II) with MeLi and an olefin gave 1-fluoro-1-methylcyclopropanes in fair yields. Thus, reaction of II with EtCH:CMe2 and MeLi at -78 Deg gave syn- and anti-III and IV. Depending on the reaction conditions, other cyclopropanes were obtained as well, I and II, although supposedly giving the same intermediate with MeLi, did not give the same product distribution. BuLi and PhLi gave analogous products. [on SciFinder (R)]
Titre
1-Fluor-1-organyl-cyclopropane und andere Cyclopropan-Derivate durch Anlagerungsreaktion von "Nachfolge-Carbenen"
Publié dans
Helvetica Chimica Acta
Volume
58
Numéro
8
Pages
2575-2585
Date
1975
ISSN
0018-019X
Note
CAN 84:105043
24-2
Alicyclic Compounds
Inst. Chim. Org.,Univ. Lausanne,Lausanne,Switz.
Journal
written in German.
1460-19-1P; 22537-03-7P; 26650-62-4P; 31707-69-4P; 31754-77-5P; 31754-78-6P; 31754-79-7P; 31754-80-0P; 31772-74-4P; 31772-75-5P; 51954-18-8P; 58567-33-2P; 58567-34-3P; 58567-35-4P; 58567-36-5P; 58567-38-7P; 58567-39-8P; 58581-14-9P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of); 917-54-4 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with chlorodifluoromethane and olefins); 591-51-5 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with chlorofluoromethanes and olefins); 625-27-4 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with dichlorodifluoromethane and methyllithium); 513-35-9; 58567-37-6 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with methyllithium and chlorofluoromethanes); 75-45-6; 75-71-8 Role: RCT (Reactant), RACT (Reactant or reagent) (reaction of, with olefins and methyllithium); 109-72-8 Role: RCT (Reactant), RACT (Reactant or reagent) (with chlorofluoromethane and olefin); 110-83-8 Role: RCT (Reactant), RACT (Reactant or reagent) (with methyllithium and chlorofluoromethanes)
Date de création de la notice
2006-03-03
