Xn:Harmful;
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79-24-3Relevant articles and documents
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McCombie,Saunders,Wild
, p. 24 (1944)
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Formation of positive and negative ions in CH3NO2
Jiao,DeJoseph Jr.,Garscadden
, p. 9040 - 9044 (2003)
Absolute dissociative ionization cross-sections from threshold to 200 eV have been measured using Fourier transform mass spectrometry (FTMS). In the production of positive ions by electron impact ionization, 13 ions are detected, including the parent ion
METHODS FOR FUNCTIONALIZATION HYDROCARBONS
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Page/Page column 0158; 0163; 0182, (2020/09/27)
In one aspect, the disclosure relates to a method for functionalizing hydrocarbons. In a further aspect, the method involves heating a hydrocarbon with a composition having an acid and an oxidant. In other aspects, the composition can further include an iodine-based compound and/or a compound having formula AaXn. In any of these aspects, the oxidant can be regenerated in situ or in a separate regeneration step. Also disclosed are functionalized hydrocarbons produced by the disclosed method. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.
Green synthesis of low-carbon chain nitroalkanes via a novel tandem reaction of ketones catalyzed by TS-1
Chu, Qingyan,He, Guangke,Xi, Yang,Wang, Ping,Yu, Haoxuan,Liu, Rui,Zhu, Hongjun
, p. 46 - 50 (2018/02/09)
A green and efficient one-pot method has been developed for the synthesis of low-carbon chain nitroalkanes via a novel TS-1 catalyzed tandem oxidation of ketones with H2O2 and NH3. The tandem reaction including ammoxidation, oximation and oxidation of oximes, afforded up to 88% yield and 98% chemo-selectivity requiring only 90 min, at 70 °C and atmospheric pressure. Moreover, this method was even amenable to 100-fold scale-up without loss of chemical efficiency with 87% yield, represents a significant advance towards industrial production of nitroalkanes. Furthermore, the plausible mechanism of TS-1 catalyzed tandem oxidation of ketones to prepare nitroalkanes was proposed.
S-alkylation of thiacalixarenes: A long-neglected possibility in the calixarene family
Kundrat, Ondrej,Eigner, Vaclav,Dvorakova, Hana,Lhotak, Pavel
supporting information; scheme or table, p. 4032 - 4035 (2011/09/20)
Despite the high nucleophilicity of sulfur atoms, thiacalixarenes have been alkylated only on oxygen atoms thus far. Using strong alkylating agents (triflates, trialkyloxonium salts), the substitution of the sulfur bridges has been successfully accomplished. The corresponding sulfonium salts of thiacalix[4]arene are formed regio- and stereoselectively as a completely new type of substitution pattern in thiacalixarene chemistry. These compounds possess interesting conformational behavior and could be used as unusual alkylating agents with uncommon selectivity.