Triphenylphosphine → [(2-Ethyl-1,3-oxazol-4-yl)methyl]triphenylphosphonium chloride
Reaction equation
[Cl:1][CH2:2][C:3]1[N:4]=[C:5]([CH2:8][CH3:9])[O:6][CH:7]=1.[C:10]1([P:16]([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1>C(#N)C>[Cl-:1].[CH2:8]([C:5]1[O:6][CH:7]=[C:3]([CH2:2][P+:16]([C:17]2[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=2)([C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[C:10]2[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=2)[N:4]=1)[CH3:9]Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 4-chloromethyl-2-ethyl-1,3-oxazole (2.90 g), triphenylphosphine (5.22 g) and acetonitrile (100 mL) was heated under reflux for 15 hrs. After concentration of the reaction mixture, the precipitated crystals were washed with diethyl ether to give [(2-ethyl-1,3-oxazol-4-yl)methyl]triphenylphosphonium chloride as colorless crystals (6.57 g, yield 81%). Recrystallization from acetonitrile-diethyl ether gave colorless prism crystals. melting point: 223-224° C.