Potassium Carbonate → HCID 20298006, compound

Reaction equation

[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][OH:13].[O:14]1CCC[CH2:16][CH:15]1OC1CCCCO1.[C:27]1([P:33]([C:40]2[CH:45]=[CH:44][CH:43]=[CH:42][CH:41]=2)[C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1.C(=O)([O-])[O-].[K+].[K+]>C(#N)C>[Br-:1].[C:40]1([P+:33]([C:27]2[CH:28]=[CH:29][CH:30]=[CH:31][CH:32]=2)([C:34]2[CH:39]=[CH:38][CH:37]=[CH:36][CH:35]=2)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][O:13][C:15](=[O:14])[CH3:16])[CH:41]=[CH:42][CH:43]=[CH:44][CH:45]=1

Participants

Procedure

A solution of 30 g. (0.102 moles) of 11-bromo-undecanol acetate (Formula VI, X=Br, Y=COCH3), 26.72 g. (0.102 moles) of triphenyl phosphine and 0.5 g. of potassium carbonate in 100 ml. of dry acetonitrile is refluxed for 15 hours. The solution is cooled, diluted with 200 ml. of dry ether, and the upper ether phase is decanted from the separated oily substance. This operation is repeated twice with 200 ml. of dry ether. The obtained 45.3 g. (80%) of triphenyl-(11-acetoxy-undecyl)-phosphonium bromide (Formula V, X=Br, Y=COCH3) is dried in vacuo.