The mole ratio of diketene and 2-methoxy- ethanol was 1:1;

双乙烯酮与乙二醇单甲醚的摩尔比为1：1；

A new method of synthesis of Vanillin from 2 methoxy 4 methyl phenol was studied.

研究了4甲基愈创木酚一步氧化法合成香兰素的新工艺.

The electric effects of methoxy in ortho-position differ from that in meso-position.

甲氧基处于氨基的邻位的电子效应和处于间位时不同。

As the quality of life improved, the need of Low methoxy pectin will also increase dramatically.

随着人们生活质量的提高，低甲氧基果胶的需求也将剧增。

The reaction conditions of synthesizing 1-methoxy-2-propanol by solid base catalyst were investigated.

考察了固体碱催化剂上2—丙基甲醚合成反应的工艺条件。

R is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.

是取化基，如乙氧基、 甲氧基及它们的环氧和烷氧同系物或卤基。

Methoxy polyethylene glycol(MPEG), which grafted with cellulose diacetate(CDA), was applied as a modifier.

采用聚乙二醇单甲醚（ MPEG）作为改性剂，与二醋酸纤维素（ CDA）进行接枝反应。

OBJECTIVE To establish a capillary column GC method for the determination of methoxy and hydroxypropoxy content in hypromellose.

目的建立毛细管柱GC法测定羟丙甲纤维素中甲氧基和羟丙氧基含量的方法。

Analyzed the molecular structure of 4-Hydroxy-3-Methoxy Cinnamylic Acid, and studied the second-order nonlinear optical properties.

分析了4羟基3甲氧基肉桂酸的分子结构特点，研究了其二阶非线性光学性质和固体样品的透光性能。

The reaction path of dimethyl carbonate is the induced-insert reaction of weak absorbed carbon monoxide with absorbed methoxy groups.

生成碳酸二甲酯的途径是吸附态的甲氧基诱导弱吸附的一氧化碳进行插入反应生成的。