81 This general reaction also has been reported with either iodosylbenzene or iodosylbenzene/RuCl2(PPh3)3.82 Mercury(II) ion oxidizes secondary amines to imines when reacted in the presence of acetic acid.83 For example, 2-t-butylpiperidine gives a 75% yield of the more substituted imine. ...
of N,N,N',N'-tetraacetyl-ethylene-diamine (I), N,N'-diacetyl- ethylene-diamine (II) is reacted with acetic anhydride (III), (pt. of) which is recovered from another cycle, giving a reaction mixt. of (I) and (III). Acetic acid (IIIA) is distilled from this and the distn. ...
The compounds can be prepared by the reaction of amines with a fatty acid. For example, soya fatty acid can be reacted with N-ethyl ethylene diamine by heating to 150°C for a period of 4 h. The reaction product is then solubilized by forming the salts with acetic acid (Miksic et al...
Furthermore, the use of carbodiimide derivatives for the direct formation of guanidine did not proceed and only CbzNCS as a small and reactive reagent reacted with the sterically hindered resulting N9 amine. As the thiourea moiety of 20 could not be directly converted into guanidine due to the...
Answer to: Reacting an amine with an acid chloride will produce? - an ammonium ion and OH^- - a salt - an amide plus HCl - an amide plus a...
(alkylene oxide) or mixtures thereof, adding to the amine solution a diglycidyl ether in an amine hydrogen equivalent to epoxide equivalent ratio of from 0.9:1 to 1.2:1 under conditions sufficient to cause the amine moieties to react with the epoxy moieties to form a polymer backbone having ...
Derivatization of primary amines using PFBAY is combined with several headspace microextraction techniques, such as SPME and single-drop microextraction. Although, N,N-dimethylformamide (DMF) dialkyl acetal forms Schiff base type derivatives with primary amines, this reagent also reacts with carboxyl ...
with ammonium bicarbonate, were reacted with Boc-Tyr-OSu (N-tert-butyloxycarbonyl-tyrosyl-succinimidyl ester) in DMF at 50°C for 3h. Then, the conjugate was purified by gel filtration. Finally, the Boc group was released by treating the dry oligosaccharide with trifluoroacetic acid at room ...
Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by theRitter reaction. In this method a tertiaryalcoholreacts withhydrogen cyanide(HCN) in the presence of a concentrated strongacid; a formamide, RNH―CHO, is formed fir...
The term “carboxylic salt” of an amine refers to a compound created by reacting a carboxylic acid with an amine-containing compound. As used herein, it means that all primary and/or secondary amines present have been reacted and converted to their corresponding carboxylate salts. ...