丁二酸二甲酯

以阳离子交换树脂NKC-9固体酸为催化剂、丁二酸和甲醇为原料，采用分子筛吸附脱水技术合成丁二酸二甲酯。

Synthesis of dimethyl succinate from succinic acid and methanol on cation exchange resin NKC-9 was studied under adsorption dehydration with 3A zeolite adsorbent .

多取代芳香族化合物的合成4.取代的环丁-3-烯砜与丁炔二酸二甲酯的Diels-Alder反应

Synthesis of Polysubstituted Aromatic Compounds 4 . The Diels Alder Reaction of Substituted 3 Sulfolenes with Dimethyl Acetylenedicarboxylate

原卟啉IX二甲酯（1）与强亲二烯体丁炔二酸二甲酯（DMAD）进行〔4＋2〕环化加成生成相应的环A或环B二氢卟吩异构体。

Protoporphyrin IX dimethyl ester ( 1 ) reacted in a [ 4 + 2 ] cycloaddition with strongly activated dienophile & dimethyl acetylenedicarboxylate ( DMAD ) to give the corresponding chlorins with the ring A and B isomers .

采用熔融酯交换反应将液晶单体和1,4&丁二醇（BDO）和丁二酸二甲酯（BDS）进行共聚。

Melted state transesterification is adopted by mesogenic monomer , 1 , 4-BDO and BDS .