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研究了采用固体酸为催化剂,以氢醌和甲醇为原料,苯醌为助剂,合成氢醌单甲醚.发现添加助剂苯醌,可大大提高氢醌转化率和氢醌单甲醚收率.在重量比氢醌/苯醌为6:1,氢醌/催化剂为1.5:1的条件下,氢醌转化率87%,氢醌单甲醚摩尔收率98%.反应过程中不生成氢醌二甲醚.固体酸催化剂可反复多次使用.
Hydroxylquinone and methyl alcohol were used as raw materials and benzoquinone as assistant to synthesize hydroquinone monomethyl ether by using solid acid as catalyst and hydroquinone monomethyl ether The hydroquinone conversion was 87% and the hydroquinone monomethyl ether molar yield was 98% at a weight ratio of hydroquinone / benzoquinone of 6: 1 and hydroquinone / catalyst of 1.5: 1. The reaction was not generated Hydroquinone Dimethyl ether Solid acid catalyst can be used repeatedly.