Alkylation of ambident nucleophiles different places by using phase-transfer catalytic agent were studied in this paper.

本文究了在相转移催化条件可亲核试剂不同位置的烷基化反应。

The preparation of hydroxyacetone was studied by esterification of chloroacetone with sodium formate and alcholysis of acetonyl formate with methanol.

以一氯丙酮、甲酸钠和甲醇为原料经酯化与醇解步反应合成羟基丙酮,究了反应条件相转移催化酯化以及醇解反应蒸馏过的影响。

In software engineering, the degree of complication of a system or system component, determined by such factors as the number and intricacy of interfaces, the number and intricacy of conditional branches, the degree of nesting, the types of data structures, and other system characteristics.

在软件工中，系统或系统组成部分的复杂述因素确定：接口的数量和错综、条件转移的数量和错综、嵌套的深、数据结构的类型，以及其它一些系统特性。