108-75-8Relevant articles and documents
TETRAACYLATION OF ISOBUTENE : FIRST SYNTHESIS OF 1,3,6,8-TETRAMETHYL-2,7-NAPHTHYRIDINE
Erre, Claude,Pedra, Annette,Arnaud, Michel,Roussel, Christian
, p. 515 - 518 (1984)
The tetraacetylation of isobutene has been performed in AlCl3/AcCl.Treatment of the crude reaction medium with liquid ammonia yields the title compound.
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Janz,McCulloch
, p. 3143 (1955)
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Trofimov et al.
, (1975)
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SYNTHESIS AND PROPERTIES OF BIS(PYRIDYLMETHYLENE)MERCURY DERIVATIVES
Boev, V. I.,Dombrovskii, A. V.
, p. 649 - 651 (1981)
The action of ammonia on α- and γ-monomercurimethylenepyrylium perchlorates gave bis(pyridylmethylene)mercury derivatives, which undergo decomposition to the corresponding pyridine derivatives and mercuric chloride.
Microwave-assisted reduction of aromatic nitro compounds with novel oxo-rhenium complexes
Blacque, Olivier,Grieco, Gabriele
, (2021/09/16)
The reduction of several aromatic nitro compounds to amines by means of the two novel catalytic systems ([IMes]2ReOBr3)/PhSiH3 and ([Py]3ReNOBr2)/PhSiH3 under microwave irradiation is here reported. These two systems were able to perform the reduction of nitro groups with higher TON and TOF when compared with previously reported systems based on oxo-rhenium core under standard heating, although they showed a lesser broad reaction scope compared with the known systems.
Based on supercritical fluid technology of production method of 2, 4, 6 - trimethyl pyridine (by machine translation)
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Paragraph 0025-0053, (2019/03/29)
The present invention provides a supercritical fluid technology based on 2, 4, 6 - trimethyl pyridine production method, comprising the following steps: adding the catalyst and acetone in the supercritical reaction vessel, stir, the liquid ammonia into the reactor, first pressurizing and heating make the liquid ammonia to achieve the ultra zero state, and then to continue to pressurizing and heating the acetone to achieve ultra zero state, rapid cooling, the termination of the reaction, based on supercritical fluid technology to obtain 2, 4, 6 - trimethyl pyridine elementary product; or the acetone added supercritical in the reactor, the liquid ammonia into the reactor, first pressurizing and heating make the liquid ammonia to achieve the ultra zero state, and then to continue to pressurizing and heating the acetone to achieve ultra zero state, rapid cooling, the termination of the reaction, based on supercritical fluid technology to obtain 2, 4, 6 - trimethyl pyridine and taste; finally the 2, 4, 6 - trimethyl pyridine elementary product through the rectification, based on supercritical fluid technology to obtain 2, 4, 6 - trimethyl pyridine. Preparation method of this invention is simple, efficient reaction, the yield of the product and high purity. (by machine translation)
Simple and Clean Photo-induced Methylation of Heteroarenes with MeOH
Liu, Wenbo,Yang, Xiaobo,Zhou, Zhong-Zhen,Li, Chao-Jun
supporting information, p. 688 - 702 (2017/05/15)
Heteroarene methylation utilizing a cheap and safe methylation source without involving transition metals represents an important yet challenging objective. Here, a simple and clean catalyst-free protocol for the methylation of various heteroarenes (including six- and five-membered types) is described under light irradiation. This protocol employs cheap, readily available, and abundant MeOH as both the solvent and the methylation source. It was found that adding dichloromethane (DCM) as a co-solvent could significantly increase the yield of the methylation products. Heteroarenes bearing various functional groups could be methylated and tri-deuteromethylated successfully. Deuterium labeling studies suggested that the newly generated methyl group in the products consisted of two hydrogens from the methyl group and one hydrogen from the OH group in MeOH.