CAS: 3967-54-2; 4-Chloro-1,3-Dioxolan-2-One

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CAS号96-49-1 碳酸乙烯酯 | CAS号7782-50-5 氯气 | CAS号141-46-8 羟乙醛 | CAS号96-49-1 碳酸乙烯酯 | CAS号872-36-6 碳酸亚乙烯酯 | CAS号554-68-7 三乙胺盐酸盐 | CAS号107-20-0 一氯乙醛 | CAS号64-19-7 冰醋酸 | CAS号114435-02-8 氟代碳酸乙烯酯 | CAS号4851-64-3 ethenyl diethyl...

碳酸乙烯酯置于氯体系中,化学反应生成氯代碳酸乙烯酯
参考文献:使用新的光流装置对碳酸亚乙酯进行高速 C-H 氯化
标题:使用新的光流装置对碳酸亚乙酯进行高速 C-H 氯化
摘要:我们报道了碳酸亚乙酯的高速 C-H 氯化反应,生成了碳酸亚乙烯酯的前体氯亚乙酯.一种为气液两相反应设计的新型光流装置被证明可用于直接使用氯气.该设置采用倾斜通道,以使液相变薄,确保高表面体积比.当将碳酸亚乙酯引入反应器时,停留时间测量为 15 或 30 秒,这取决于反应器的斜率分别设置为 15 或 5°.如此短的曝光时间足以满足照片 C-H 氯化反应.流动通道的部分辐照也足以进行c-H氯化,这与光辐照以自由基引发为目的的要求一致.单次氯化的近乎完全选择性要求碳酸亚乙酯的低转化率,例如 9%,这是通过有限的氯气引入来控制的.在较高的碳酸亚乙酯转化率例如61%时,一氯代碳酸亚乙酯相对于二氯代碳酸亚乙酯的选择性为86%.我们发现水对底物的污染会对 C-H 氯化的性能产生负面影响.
Doi:10.3762/bjoc.18.16

专利信息

专利号:US-5139940-A
优先权日:1989-10-26
标题 :Activation compounds and methods of synthesis of activation compounds
发明人：ISAACS STEPHEN T; CIMINO GEORGE D; METCHETTE KENNETH C; TESSMAN JOHN W
权利人:ISAACS STEPHEN T; CIMINO GOERGE D; METCHETTE KENNETH C; TESSMAN JOHN W
摘要:The invention is directed to isopsoralen compound compositions that contain a variety of substitutions which yet permit their binding to nucleic acid polymers. Reaction conditions that activate these bound isopsoralens results in covalent crosslinking to the nucleic acid polymers. The resultant complex is inhibited from being a template for the template-directed enzymatic synthesis of a complementary nucleic acid polymer. Beside the isopsoralens compositions, the invention includes their synthesis, the nucleic acid complex production and detection, and the above inhibitory method of use of the isopsoralens.

专利号:US-4486600-A
优先权日:1982-11-19
标题 :Process for the production of β-hydroxy-α-aminocarboxylic acids
发明人：KLEEMANN AXEL; LEHMANN BERND; DELLER KLAUS
权利人:DEGUSSA
摘要:β-hydroxy-α-aminocarboxylic acids of the formula: ##STR1## where R 1 and R 2 are hydrogen or an alkyl group having 1 to 10 carbon atoms are produced by hydrogenating the correspondingly substituted cyanohydrin in a water containing medium first in the presence of a hydrogenation catalyst and an acid at a temperature between -10° and +40° C. and a hydrogen pressure of less than 10 bar, until per mole of cyanohydrogen employed one mole of hydrogen is taken up and then employing the solution obtained as starting material for a Strecker or Bucherer synthesis of an amino acid.

专利号:WO-2008132474-A1
优先权日:2007-04-25
标 题:Synthesis of cyclic carbonates in the presence of dimeric aluminium (salen) catalysts

专利号:CN-219722909-U
优先权日:2023-04-18
标 题 :A kind of preparation line for continuous synthesis of chloroethylene carbonate

专利号:CN-114957193-A
优先权日:2022-05-11
标题 :A kind of method for green synthesis of vinylene carbonate

专利号:CN-220634281-U
优先权日:2023-04-18
标题:A reaction tank for low-temperature synthesis of fluoroethylene carbonate