CAS: 623-76-7; 1,3-Diethylurea

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CAS号75-04-7 乙胺 | CAS号39076-43-2 S-methyl N-ethy... | CAS号109-90-0 异氰酸乙酯 | CAS号7098-07-9 1-乙基咪唑 | CAS号935-02-4 3-苯基丙炔腈 | CAS号616-47-7 N-甲基咪唑 | CAS号201230-82-2 carbon monoxide | CAS号31410-01-2 1-烯丙基咪唑 | CAS号868-84-8 荒酸二甲酯 | CAS号593-77-1 N-Methylhydroxy... | CAS号52998-22-8 1,3-二乙基-5,6-二氨基尿嘧啶 | CAS号557-66-4 乙胺盐酸盐 | CAS号109-90-0 异氰酸乙酯 | CAS号1467-23-8 N-[(Ethylamino)... | CAS号75-04-7 乙胺 | CAS号41740-15-2 6-氨基-1,3-二乙基-2,... | CAS号89073-60-9 1,3-二乙基-6-氨基-5-... | CAS号625-50-3 N-乙基乙酰胺 | CAS号57012-86-9 1-乙基咪唑烷-2,4,5-三酮 | CAS号15909-81-6 Selenourea, N,N...

N,N'-Diethylcarbodiimide置于盐酸体系中,化学反应生成 1,3-二乙基脲
参考文献:Staudinger; Hauser,Helvetica Chimica Acta,1921,Vol. 4,P. 891
标题:Staudinger; Hauser,Helvetica Chimica Acta,1921,Vol. 4,P. 891

专利信息

专利号:WO-2023152730-A1
优先权日:2022-02-14
标题 :Amine-borane adducts in the synthesis of polyester and its copolymers using cyclic esters and compositions thereof
发明人：FENG XIAOSHUANG; LIU JINGJING; GNANOU YVES
权利人:UNIV KING ABDULLAH SCI & TECH
摘要:Embodiments of the present disclosure provide for the process of synthesis of polyester and its copolymers through (co)polymerization of cyclic esters and with other oxygenated monomers using amine-borane adduct. Embodiments of the present disclosure further describe the controlled anionic ring-opening polymerization of the cyclic compounds. Embodiments of the present disclosure also describe the polymerization of cyclic compounds using the synergistic effect of amines and thioureas. Embodiments of the present disclosure also describe compositions of polymers formed by the said process.

专利号:US-2024424490-A1
优先权日:2021-01-25
标 题 :Method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles
发明人：WNUK PAWEL; LEWERA ADAM; JURCZAKOWSKI RAFAL; POWALA FILIP; KOLODZIEJCZYK JAN
权利人:UNIV WARSZAWSKI
摘要:The presented invention relates to a method of synthesis of carbon-supported platinum group metal or metal alloy nanoparticles, which comprises the following steps:n adsorbing on carbon support complexes of a platinum group metal with a urea complexing agent selected from a group comprising urea, urea derivative, a mixture of urea with at least one urea derivative, and a mixture of at least two urea derivatives; and reducing the complexes adsorbed on the carbon support to metal nanoparticles, forming a product of carbon-supported metal nanoparticles. nn The invention also provides the use of the carbon-supported platinum group metal or metal alloy nanoparticles obtained by the method of the invention as catalyst. n The present invention further relates to a method of adsorption of precursors of platinum group metals on the surface of a carbon support and use of complexes of platinum group metals with urea complexing agent for adsorption of platinum group metal precursors on carbon support.

专利号:US-4627968-A
优先权日:1984-09-10
标 题 :Synthesis of crystalline aluminosilicate with alkylurea or alkylthiourea
发明人：KAI TADASHI
权利人:ASAHI CHEMICAL IND
摘要:In the synthesis of a crystalline aluminosilicate by heating an aqueous mixture containing a silica source, an alumina source and an alkali metal source, at least one compound selected from lower alkylureas and lower alkylthioureas is permitted to co-exist with the mixture.

专利号:US-9809565-B2
优先权日:2013-07-05
标 题 :Formation of chiral 4-chromanones using chiral pyrrolidines in the presence of ureas or thioureas
发明人：LETINOIS ULLA; NETSCHER THOMAS; ACKERMANN STEPHAN
权利人:DSM IP ASSETS BV
摘要:The present invention relates to a synthesis of chromanones or chromanes in a stereospecific matter in view of the 2-position in the chromanone or chromane ring. It has been found that this synthesis is particularly possible in the presence of a chiral compound of formula of a specific type and of at least one urea or thiourea.

专利号:US-9254327-B2
优先权日:2010-05-10
标 题 :Methods and compositions for delivery of active agents
发明人：MANOHARAN MUTHIAH; RAJEEV KALLANTHOTTATHIL G
权利人:MANOHARAN MUTHIAH; RAJEEV KALLANTHOTTATHIL G; ALNYLAM PHARMACEUTICALS INC
摘要:A lipid particle can include a cationic lipid. Synthesis of the cationic lipid can include a ylide-based reaction, such as a Wittig reaction or sulfur ylide reaction. In some cases, the synthesis can also include a Michael addition or a related addition reaction.

专利号:US-9080119-B2
优先权日:2011-11-10
标 题:Synthesis of high caloric fuels and chemicals including pentanol from coal, natural gas, and biomass
发明人：HENRI JOHN; ZYGMUNT JAN; BERGGREN MARK; ZUBRIN ROBERT
权利人:PIONEER ENERGY INC; Pioneer Energy
摘要:In one embodiment, the present application discloses methods to selectively synthesize higher alcohols and hydrocarbons useful as fuels and industrial chemicals from syngas and biomass. Ketene and ketonization chemistry along with hydrogenation reactions are used to synthesize fuels and chemicals. In another embodiment, ketene used to form fuels and chemicals may be manufactured from acetic acid which in turn can be synthesized from synthesis gas which is produced from coal, biomass, natural gas, etc.