CAS: 64-10-8; 1-Phenylurea

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苯甲酰胺置于碘苯二乙酸,氨体系中,用 甲醇 作为反应溶剂,化学反应 2.0H,以99%的收率获得产物苯基脲
参考文献:由伯酰胺直接合成n取代的尿素
标题:由伯酰胺直接合成n取代的尿素
摘要:通过在甲醇中的氨源(nh 3或氨基甲酸铵)存在下用苯乙酸二乙酸酯(pida)处理伯酰胺,可以实现一种直接,方便的制备n-取代脲的方法.使用2,2,2-三氟乙醇(tfe)作作为反应溶剂可提高高价碘物种的亲电子性,并允许合成贫电子羧酰胺.该转化涉及通过起始酰胺的霍夫曼重排在原位产生的异氰酸酯中间体上亲核加成氨.
DOI:10.1055/s-0040-1707103

专利信息

专利号:US-5919969-A
优先权日:1996-06-05
标 题 :Synthesis of yellow couplers
发明人：CRAWLEY MICHAEL W
权利人:EASTMAN KODAK CO
摘要:The invention provides a method of synthesis of a image-dye forming coupler of formula (I) wherein X is a substituent linked to the coupler by an atom of oxygen, sulfur or nitrogen R1 is an alkyl or aryl group, R2 is a hydrogen atom or an alkyl group; R3 to R7 are the same or different and selected from a hydrogen atom and substituent groups; which method comprises the reaction of a compound of formula (II) wherein R and R1 are the same or different and are as defined above for R1 and X is as defined above with a compound of formula (III) wherein R2 to R7 are as defined above, in the presence of an inert organic solvent.

专利号:US-8034966-B1
优先权日:2008-02-20
标 题:Phenoxyisobutyric acid compounds and methods for synthesis
发明人：LALEZARI IRAJ; FABRICANT JILL
权利人:CELL VIABLE CORP
摘要:The present invention provides a process for the synthesis of substituted arylureidophenoxymethylpropionic acid and related compounds including bifunctional and tetrafunctional derivatives. The compounds are useful for inhibiting the formation of AGEs (Aminaglycation end products).

专利号:US-9040553-B2
优先权日:2010-09-17
标题:Phenoxyisobutyric acid compounds and method of synthesis
发明人：LALEZARI IRAJ; FABRICANT JILL
权利人:LALEZARI IRAJ; FABRICANT JILL; CELL VIABLE CORP
摘要:The present invention provides a process for the synthesis of substituted phenoxymethylpropionic acid and related compounds. The compounds are useful for inhibiting the formation of AGEs (Advanced Glycation End Products).

专利号:US-6664396-B1
优先权日:2002-06-27
标 题 :One step synthesis for quinacridone compounds
发明人：COSIMBESCU LELIA
权利人:EASTMAN KODAK CO
摘要:Disclosed is a process for forming a N,N'-diarylquinacridone compound comprising the step of reacting a N,N'-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N' positions and form the corresponding N,N'-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N'-diarylquinacridone compounds.

专利号:US-7026481-B2
优先权日:2002-06-27
标题 :Synthesis for quinacridone compounds
发明人：COSIMBESCU LELIA; SHI JIANMIN
权利人:EASTMAN KODAK CO
摘要:Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the corresponding 2,5-bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.

专利号:US-6696586-B1
优先权日:2002-08-07
标题 :Bis AU(I) sensitizers and their synthesis
发明人：CLEARY BRIAN P; LOK ROGER; WHITE WEIMAR W
权利人:EASTMAN KODAK CO
摘要:This invention relates to an organothiosulfonato Au(I) complex having the formula n n n [A—SO 2 S—Au—SSO 2 —A] n − M +n n n n wherein n M is a cationic counter ion; n A is a substituted or unsubstituted organic group; n and n is 1 to 4; and wherein the compound is symmetrical. It further relates to the synthesis of said compounds.