The reaction of stabilized phosphonium ylide from benzyltriphenylphosphonium chloride with cinnamaldehyde was induced to yield trans, trans form of 1,4-diphenyl-1 ,3-butadiene with high stereoselectivity by the Wittig reaction. The Wittig salt (benzyl...
The reaction of stabilized phosphonium ylide from benzyltriphenylphosphonium chloride with cinnamaldehyde was induced to yield trans, trans form of 1,4-diphenyl-1 ,3-butadiene with high stereoselectivity by the Wittig reaction. The Wittig salt (benzyl triphenyl phosphonium chloride) was synthesized by nucleophilic substitution reaction of triphenyl phosphine using benzyl chloride with good yield (60.3%). The final product, trans, trans-1,4-diphenyl-l,3-butadiene, was obtained as a solid form 58.6% yield (overall yield=35.3%) and determined by TLC (Thin Layer Chromatography) and 1H-NMR spectroscopy.