Give the general formula for an amine. Name the characteristic group it contains. What property makes the simple amines unpopular?Amine:In the world of chemistry, these are those functional group that contains alkyl group with at least one atom of nit...
PROBLEM TO BE SOLVED: To easily obtain, in a high yield and in an industrially advantageous way, amines useful as intermediates, for medicines and agrochemicals by treating a specific substituted amides with a reducing agent composed of a specific halide and a metal borohydride.丸尾 政文...
The covering term “vita-amine” reflected his (mistaken) belief that other deficiency diseases – scurvy, rickets, pellagra – would be found to result from the absence of different amines (i.e., nitrogen-containing) molecules. In the case of pellagra, niacin (aka vitamin B3, aka ...
This invention relates to new aliphatic-aromatic amines of the general formula (OH) 2CaHl-R--N-Rr-C 6HO H Rs wherein Ri and R2 represent alkyl or alkylene radicles and R3 represents hydrogen or an alkyl or alkylene radicle. It is known that dihydroxyethylphenylamine, like adrenalin, cau...
Methods and reagents for photo-initiated carbonylation with carbon-isotope labeled carbon monoxide using weakly nucleophilic amines and alkyl/aryl iodides are provided. The resultant carbon-isotope labeled amides are useful as radiopharm... O Itsenko,T Kihlberg,B Langstrom - US 被引量: 3发表: 2012...
Recent investigations established that, in addition to polycyclic aromatic hydrocarbons, the carcinogenicity of tobacco and nicotine is associated with N′-nitrosamines of secondary amines, such as N′-nitrosonornicotine or certain nitrosaminoketones, either already present in tobacco or formed f...
The urine of cigarette smokers has been found to be strongly mutagenic in bacterial test systems. There are at least 43 carcinogens described in cigarette smoke which include polyaromatic hydrocarbons, heterocyclic hydrocarbons, N-nitrosamines, aromatic amines, aldehydes, volatile carcinogens, inorganic ...
3b). Xanthones with methoxy and allyl amino substituents (K17–K21) were obtained by alkylation of hydroxyxanthones or by nucleophilic aromatic substitution of 3,6-bistriflate xanthones with corresponding amines (Supplementary Fig. 4). With the key intermediates K2–K21 in hand, we explored the...
摘要: The title compounds are prepared by Pd-catalyzed N-arylation of the sulfonamide and subsequent deprotection.关键词: sulfonamides (hydrazides, ureides) (benzene compounds amines (benzene compounds general (heterocyclic compounds amination, N‐alkylation, N‐arylation ...
This invention relates to a new and improved process of preparing guanamines. Guanamines are heterocyclic compounds having the triazine ring and may be represented by the following general formula: R C c I I NH2--C C-NH2 N in which R is an organic radical attached to the carbon atom of...