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In positive-ion mode, 2-Bromo-2-ethylbutanamide ([M+H]+ with m/z 194.0175; [C6H13BrNO]+) shows a primary loss of HBr to a product ion with m/z 114, which undergoes further fragmentation. The hypnotic and sedative drugs bromisoval ([M+H]+ with m/z 223.0077; [C6H12BrN2O2]+)...
The meaning of NITRAMINE is any of a class of compounds characterized by the grouping >NNO2 consisting of a nitro group attached to nitrogen and regarded either as N -nitro derivatives of amines or as organic derivatives of nitramide; especially : tet
With phosgene the latter reagent forms the 1-carbonyl chloride (66) which is in turn converted into the amide (67) by piperidine (Scheme 22) 〈79LA1756〉. Note though that 1-acetyl derivatives of imidazole-2-thiols (or -2-ones) must be prepared by heating with acetic anhydride in ...
aThis structural difference accounts for the outcome of their enzymatic acylation. Due to the steric hindrance around the amine group of 1 that acts as the nucleophile attacking the acyl enzyme intermediate to form the amide, 这个结构区别占他们的酶酰化产物的结果。 由于位的妨碍在作为nucleophile攻击...
We postulate that the origin of this remarkable difference in the shape of the EQE spectra lies in the fact that PEIE and PDIN are able to induce n-type doping in the NFA photoactive layers, while PFN-Br and ZnO are not. We measured current density–voltage (J–V) characteristics under...
The theoretical work also focuses on the TMEDA-free parent amide complexes and reveals that the energy difference for the formation of [(M(tmp))x] (in which, M=Li or Na, x=3 or 4; and M=K, x=2, 3 or 4) are small. 展开 ...
3) Discuss the importance of the tertiary and quaternary structures of Which one of the following is obtained if two hydrogens of ammonia replace with alkyl groups? (a) primary amine (b) secondary amine (c) tertiary amine (d) amideIs (CH_3)_2CHNH_2 a secondary ami...
Thanks to the orthogonal reactivity of nitro groups with protic functional groups, hydroxyalkyl (3f), amine (3q), amide (3r), and particu- larly phenol (3g) and thiophenol groups (5u), were tolerated without the need of protection. The boronic ester group (3p) was compatible to a ...
Expanded definitions, etymologies, and usage notes Advanced search features Ad free! Dictionary Entries Nearchloroamine chloroamide chloroamine chloroaurate See More Nearby Entries Cite this Entry Style “Chloroamine.”Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictio...