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1)  methylene diphenyl dicarbamate
二苯甲烷二氨基甲酸甲酯
1.
Synthesis of methylene diphenyl dicarbamate in water-solvent system over mixed acid catalyst;
水溶剂体系液体酸催化合成二苯甲烷二氨基甲酸甲酯
2.
The synthesis of methylene diphenyl dicarbamate from N-phenyl carbamate(MPC) and formaldenhyde or trioxane with mixed acid as catalyst and water as solvent was studied.
以混合酸为催化剂,水作溶剂,对苯氨基甲酸甲酯(MPC)和甲醛溶液或三聚甲醛缩合制备二苯甲烷二氨基甲酸甲酯(MDC)的反应进行了考察,考察了混合酸浓度、反应时间、原料配比、催化剂用量等条件对反应的影响。
3.
The synthesis of methylene diphenyl dicarbamate(MDC) by the polycondensation reaction of methyl N-phenyl carbamate (MPC)with formaldehyde (HCHO) with phosphotungstic acid as catalyst,was investigated in this paper.
以磷钨酸为催化剂,考察了苯氨基甲酸甲酯(MPC)与甲醛缩合制备二苯甲烷二氨基甲酸甲酯(MDC)的工艺条件。
2)  methylene diphenyl dimethylcarbamate
二苯甲烷二氨基甲酸甲酯
1.
Then the catalytic activity of the ILs for the synthesis of methylene diphenyl dimethylcarbamate (MDC) from methyl phenyl carbamate (MPC) and formaldehyde (HCHO) was evaluated.
考察了各酸性离子液体在苯氨基甲酸甲酯(MPC)与甲醛缩合制备二苯甲烷二氨基甲酸甲酯(MDC)反应中的催化活性。
2.
The synthesis of methylene diphenyl dimethylcarbamate(4,4’-MDC) from methyl N-phenyl carbamate(MPC) and formaldehyde was investigated in the presence of [emim]BF4 ionic liquid modified with H+ as both catalyst and reaction solvent.
针对液体酸存在的设备腐蚀及回收利用问题,利用质子酸酸化的1-乙基-3-甲基咪唑四氟硼酸([emim]BF4)离子液体(ILs)既作反应溶剂又作催化剂,催化苯氨基甲酸甲酯(MPC)与甲醛缩合制备4,4’-二苯甲烷二氨基甲酸甲酯(4,4’-MDC)反应。
3)  methylene di(phenylene carbamate)
二苯甲烷二氨基甲酸甲酯
1.
HPLC analysis of the raw material and the product obtained during decomposition of 4,4\'-methylene di(phenylene carbamate)(4,4\'-MDC)for preparing 4,4\'-methylene di(phenylene isocyanate)(4,4\'-MDI)was studied in this paper.
针对4,4′-二苯甲烷二氨基甲酸甲酯(4,4′-MDC)分解制备4,4′-二苯甲烷二异氰酸酯(4,4′-MDI)的反应过程,利用高效液相色谱分析方法同时实现原料及产品的定量分析。
4)  diphenylmethane dicarbamic acid esters
二苯甲烷二氨基甲酸酯
1.
The advances in the routes to synthesize MDI are reviewed, putting emphasis upon discussing the clean synthesis methods of diphenylmethane diisocyanates by the catalytic cleavage of diphenylmethane dicarbamic acid esters (MDC).
本文对MDI的生产方法作了介绍 ,重点论述以二苯甲烷二氨基甲酸酯 (MDC)为原料清洁合成MDI的工
2.
The synthetic methods of diphenylmethane dicarbamic acid esters(MDC ) were reviewed with 31 references.
综述了二苯甲烷二氨基甲酸酯的合成方法 ,讨论了合成二苯甲烷二氨基甲酸酯所涉及的甲基化试剂、催化剂。
5)  methylene diphenyl carbamate
二苯基甲烷二氨基甲酸甲酯(MDC)
6)  4-methylene diphenyl dicarbamate
4'-二苯甲烷二氨基甲酸甲酯
1.
4,4 -Diphenylmethane diisocyanate was derivatized with methanol into 4,4 -methylene diphenyl dicarbamate so as to protect the active NCO group and avoid the usage of 4,4 -diphenylmethane diisocyanate standard which is difficult to transportation and storage.
用甲醇做衍生试剂,把4,4’-二苯甲烷二异氰酸酯(MDI)衍生成4,4’-二苯甲烷二氨基甲酸甲酯(MDC),通过高效液相色谱分析MDC的含量来计算MDI的含量。
补充资料:2,3-二氢-2,2-二甲基-7-苯并呋喃基甲氨基甲酸酯
分子式:C12H15NO3
分子量:221.26
CAS号:1563-66-2

性质:白色结晶。熔点150-152℃,33℃的蒸气压为2.66×-6kPa。25℃水中溶解度700ppm;在丙酮中的溶解度15%,乙腈中14%,苯中4%,环己酮中9%,二甲基亚砜中25%,二甲基甲酰胺中27%,甲基吡咯烷酮中30%。无腐蚀性,对热、光、酸均稳定,但在碱性介质中不稳定,无味,无臭。

制备方法:由呋喃酚与甲基异氰酸酯经缩合而得。

用途:呋喃丹是氨基甲酸酯类广谱内吸杀虫杀螨杀线虫剂,可用于多种作物防治土壤内及地面上的300多种害虫和线虫。并有缩短作物生长期、促进作物生长发育从而有效提高作物产量的作用。呋喃丹对昆虫的致毒方式,主要是内吸杀虫作用。药剂施于土壤作物的根基部分,根系吸收后随水分输送到茎叶部,以达到治虫的目的;呋喃丹还有触杀作用。用于防治棉花蚜虫,水稻,玉米根虫,对水稻、玉米、花生等作物大部分害虫有效。

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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