| abstract |
(57) [Summary] [Objective] Dialkyl dicarbonate is obtained in high yield under mild conditions. [Structure] Alkali carbonate carbonic acid alkali metal salt such as sodium t-butyl carbonate and aromatic sulfonyl halide such as p-toluenesulfonyl chloride are represented by the following formula (1): (However, R 1 and R 2 are an alkyl group, an aryl group, or these may together form a ring), for example, 4-N, N-dimethylamino React in the presence of pyridine. |