Web我一开始用的dcc催化羧酸和酚羟基的酯化，反应效果还行就是dcc很不好除，所以想换成edci但是edci是肽键缩合剂，我不知道能不能用于酯化，希望各位大侠解答，如果可以的话附上文献，也可以只有文章名，非常感谢 ... 可以尝试一下edc(1.1eq)和hobt（1.1eq），反应 ... WebThe mixture was cooled to 0 C and treated with EDC-HCl (1.2 g, 6.5 mmol), HOBt (879 mg, 6.5 mmol), and the amine (473 mg, 4.9 mmol). The reaction was stirred at RT for 30 min. After completion, the mixture was diluted with H2O (50 mL) and extracted with EtOAc (50 mL). The org layer was dried (Na2SO4) and concentrated in vacuo.
羧酸与胺的缩合酰化反应.docx - 冰豆网
Web羧酸与胺的缩合酰化反应羧酸与胺的缩合酰化反应.羧酸与胺的缩合酰化反应王露化工与制药专业 1105班 学号110150151指导教师 刘雪凌老师 摘 要 合成是制药的基本方法,也是很重要的方法,人类对药物的需求很大,要不断的创新研发新药,合成 WebA detailed mechanism illustrating the conversion of an amine to amide 3-(ethyliminomethyleneamino)-N,N-dimethylpropan-1-amine (EDC) and … EDC + HOBt. Examples. Mechanism. EDC + DMAP. Examples. DCC. Examples. … A list of techniques used in organic chemistry to purify compounds. Job Title Job Level Employer Location; Assoc/Sr Assoc/Scientist - Med Chem: … Chemical Supplier Location(s) Description; Accela ChemBio: San Diego, CA: Offer … CommonOrganicChemistry.com is a website that is primarily interested in … 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide … A list of Contract Research Organizations (CROs) and Contract Manufacturing … A useful collection of resources relavent to Organic Chemistry. Chemistry … dr shekhawat oberlin oh
用EDC/NHS连接氨基和羧基反应失败 - 化合物定制合成网
WebNov 29, 2014 · 利用碳二亚胺类缩合剂缩合制备酰胺在药物合成中应用极为广泛，目前常用的缩合剂主要有三种：二环己基碳二亚胺 (DCC)、二异丙基碳二亚胺 (DIC)和1- (3-二甲胺 … Webedci hobt缩合反应机理 药物化学中酰胺化反应运用最多的缩合剂是EDCI，通常和HOBt并用，主要原因是反应生成的脲是水溶性易除去，酰胺化反应通常需要把酸活酯化，但是这 … http://muchong.com/html/201412/8250605.html colored multifocal contact lenses article