gem-Difluorocyclopropenes by [1+2] cycloaddition reactions between difluorocarbene and acetylenes having terminal or internal triple bonds

Difluorocarbene, generated from (bromodifluoromethyl)triphenlphosphonium bromide, underwent cycloaddn. to RC.tplbond.CR1 (R = Ph, hexyl, octyl, R1 = H; R = Pr, R1 = Me, propyl; R = Ph, R1 = Me) to give difluorocyclopropenes I in 46-80% yields. [on SciFinder (R)]


Published in:
Tetrahedron, 47, 35, 7323-8
Year:
1991
Keywords:
Note:
CAN 116:20693
24-2
Alicyclic Compounds
Inst. Chim. Org.,Univ. Lausanne,Lausanne,Switz.
Journal
0040-4020
written in English.
75-61-6 (Dibromodifluoromethane) Role: RCT (Reactant), RACT (Reactant or reagent) (cycloaddn. of carbene generated from, to acetylene); 2154-59-8 (Difluorocarbene) Role: PROC (Process) (cycloaddn. of, to acetylene, cyclopropenes from); 536-74-3 (Phenylacetylene); 628-71-7 (1-Heptyne); 673-32-5 (1-Phenyl-1-propyne); 764-35-2 (2-Hexyne); 1120-32-7; 1942-45-6 (4-Octyne); 3452-09-3 (1-Nonyne) Role: PROC (Process) (cycloaddn. of, to difluorocarbene, cyclopropene from); 138101-06-1P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn. and hydrolysis of); 886-38-4P (2,3-Diphenylcyclopropenone); 138101-00-5P; 138101-02-7P; 138101-03-8P; 138101-04-9P; 138101-05-0P; 138101-07-2P; 138101-08-3P; 138101-09-4P Role: SPN (Synthetic preparation), PREP (Preparation) (prepn. of); 138101-01-6P Role: RCT (Reactant), SPN (Synthetic preparation), PREP (Preparation), RACT (Reactant or reagent) (prepn., deuteration, and hydrolysis of)
Laboratories:




 Record created 2006-03-03, last modified 2018-01-27


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