反应详情

Ethyl bromo-(phenylmethyl)propandioate (XXVI, Example 60, 130 g.) is heated under reduced pressure to 140° with vigorous evolution of carbon dioxide. When decarboxylation is complete (about 5 minutes), the mixture is distilled to give ethyl 2-bromo-3-phenylpropionate, b.p. 120°/30 mm.

1. custom(about 5 minutes)
2. distillationthe mixture is distilled