The meaning of NONAROMATIC is not aromatic; especially, of a chemical compound : not exhibiting increased chemical stability resulting from the delocalization of electrons in a ring system. How to use nonaromatic in a sentence.
Fused non-aromatic ring selected from dihydrothiophene, dihydrofuran, cycloalkyl, etc., salts or its pharmaceutically acceptable novel pyrimidine derivatives, and a pharmaceutical composition comprising as an active ingredient the compound. These compounds exhibit a hyperglycemic action and insulin secretion ...
nonconjugated with the aromatic ring directly, 青云英语翻译 请在下面的文本框内输入文字,然后点击开始翻译按钮进行翻译,如果您看不到结果,请重新翻译! 翻译结果1翻译结果2翻译结果3翻译结果4翻译结果5 翻译结果1复制译文编辑译文朗读译文返回顶部 非共轭直接与芳香环,...
We analyzed aromatic and magnetic properties of two typical expanded porphyrins, sapphyrin and orangarin, using our theory of aromaticity and ring-current diamagnetism and confirmed that, as in the case of free-base porphine, global aromaticity and macrocyclic circulation are associated primarily with...
Phenolic compounds like thymol, with the electronic density of the oxygen atom delocalized by the action of the aromatic ring, do not show any ChP (Table 3). Nevertheless, aromatic and non-aromatic rings without oxygen substituents had a high chelating activity e.g.,α-terpinene and p-cymene...
Abstract Nucleophilic aromatic substitution (SNAr) is one of the most widely applied reaction classes in pharmaceutical and chemical research, providing a broadly useful platform for the modification of aromatic ring scaffolds. The generally accepted mechanism for SNAr reactions involves a two-step additio...
T. (1975) Importance of the aromatic ring in adrenergic amines: Nonaromatic analogues of phenylethanolamine as substrates for phenylethanol-amine N -methyltransferase Mol Pharmacol. 11 , 694–699Vincek, W. C., et at, Importance of the Aromatic Ring in Adrenergic Amines. 5 Nonaromatic Analogues ...
the up-down ring inversion of COTh is ascribed to the aromaticity reversal from the ground state to excited state. By analyzing the geometric structures at the minima and at transition state of COTh in both the ground and excited states via Gaussian 09 at the (TD)DFT/B3LYP/6–31G** leve...
The results are in agreement with the conclusion that the more saturated the ring moiety, the greater the affinity for the amine uptake site of the vas deferens and suggest that there is no important interaction between the drug and this uptake site that involves pi-complex formation.doi:...
(1968), The conformation of non-aromatic ring compounds.: Part 42. Carbon-halogen stretching frequencies and conformation of 1-halogeno- and 1-alkyl-1-halogenocyclopentanes. Recl. Trav. Chim. Pays-Bas, 87: 53–64. doi: 10.1002/recl.19680870110 Author Information Laboratory of Organic ...