反应详情

Using the procedure of Example V, but substituting a mixture of propyl α-chloro-o-toluate and propyl α-bromo-o-toluate, prepared from propyl alcohol and α-bromo-o-toluoyl chloride, for the toluate mixture of Example V provides an oil which upon triturating several times with ether and precipitating as an oil from ethyl acetate with ether and drying yields 18.7 g of o-propoxycarbonylbenzyltributylphosphonium bromide, an oil having a structure in accordance with formula (1) which is confirmed by nmr spectral analysis.

1. customprovides an oil which
2. customupon triturating several times with ether
3. customprecipitating as an oil from ethyl acetate with ether
4. customdrying