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📜N,N'-二-N-丙基硫脲置于mercury(II) Diacetate,甲酰肼体系中,用 N,N-二甲基甲酰胺,乙腈 作为反应溶剂,化学反应 2.0H,反应生成 1,3-二丙基脲
参考文献:1,3-二芳基硫脲作为尿素模拟物合成芳基-(4-芳基-4 H-[1,2,4]三唑-3-基)-胺的合成研究
标题:1,3-二芳基硫脲作为尿素模拟物合成芳基-(4-芳基-4 H-[1,2,4]三唑-3-基)-胺的合成研究
摘要:研究了由巯基助剂从相应的1,3-二取代的硫脲中合成尿素模拟物的二取代的4 H-[1,2,4]三唑-3-基-胺类化合物,并提出了该反应的范围和局限性.该反应通过碳二亚胺的形成而进行,然后依次进行酰基酰肼的加成-脱水.1,3-支链的二烷基硫脲导致形成相应的脲.取代对1,3-二芳基硫脲的苯环的电子和空间作用在中间碳二亚胺的形成以及随后的n-酰基酰肼加合物的闭环方向上起重要作用.
DOI:10.1021/jo0508189

专利信息

专利号:US-9045381-B2
优先权日:2010-10-19
标 题:Ruthenium complexes and their uses in processes for formation and/or hydrogenation of esters, amides and derivatives thereof
发明人：MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING
权利人:MILSTEIN DAVID; BALARAMAN EKAMBARAM; GUNANATHAN CHIDAMBARAM; GNANAPRAKASAM BOOPATHY; ZHANG JING; YEDA RES & DEV
摘要:The present invention relates to novel Ruthenium catalysts and related borohydride complexes, and the use of such catalysts, inter alia, for (1) hydrogenation of amides (including polyamides) to alcohols and amines; (2) preparing amides from alcohols with amines (including the preparation of polyamides (e.g., polypeptides) by reacting dialcohols and diamines and/or by polymerization of amino alcohols); (3) hydrogenation of esters to alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones) or polyesters); (4) hydrogenation of organic carbonates (including polycarbonates) to alcohols and hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (5) dehydrogenative coupling of alcohols to esters; (6) hydrogenation of secondary alcohols to ketones; (7) amidation of esters (i.e., synthesis of amides from esters and amines); (8) acylation of alcohols using esters; (9) coupling of alcohols with water to form carboxylic acids; and (10) dehydrogenation of beta-amino alcohols to form pyrazines. The present invention further relates to the novel uses of certain pyridine Ruthenium catalysts.

专利号:US-12145139-B2
优先权日:2016-02-09
标题 :Manganese based complexes and uses thereof for homogeneous catalysis
发明人：MILSTEIN DAVID; NERUSH ALEX; VOGT MATTHIAS; MUKHERJEE ARUP; ESPINOSA-JALAPA NOEL ANGEL; CHAKRABORTY SUBRATA
权利人:YEDA RES & DEV; NERUSH ARKADI
摘要:The present invention relates to novel manganese complexes and their use, inter alia, for homogeneous catalysis in (1) the preparation of imine by dehydrogenative coupling of an alcohol and amine; (2) C—C coupling in Michael addition reaction using nitriles as Michael donors; (3) dehydrogenative coupling of alcohols to give esters and hydrogen gas (4) hydrogenation of esters to form alcohols (including hydrogenation of cyclic esters (lactones) or cyclic di-esters (di-lactones), or polyesters); (5) hydrogenation of amides (including cyclic dipeptides, lactams, diamide, polypeptides and polyamides) to alcohols and amines (or diamine); (6) hydrogenation of organic carbonates (including polycarbonates) to alcohols or hydrogenation of carbamates (including polycarbamates) or urea derivatives to alcohols and amines; (7) dehydrogenation of secondary alcohols to ketones; (8) amidation of esters (i.e., synthesis of amides from esters and amines); (9) acylation of alcohols using esters; (10) coupling of alcohols with water and a base to form carboxylic acids; and (11) preparation of amino acids or their salts by coupling of amino alcohols with water and a base. (12) preparation of amides (including formamides, cyclic dipeptides, diamide, lactams, polypeptides and polyamides) by dehydrogenative coupling of alcohols and amines; (13) preparation of imides from diols.

专利号:US-3523971-A
优先权日:1966-05-26
标 题 :Synthesis of acrylamides
发明人：BIALE GIOVANNI
权利人:UNION OIL CO

专利号:CN-103483224-A
优先权日:2013-10-14
标 题 :Synthesis of carbamate compounds by substituted urea alcoholysis