4083-57-2Relevant articles and documents
Cerium-Catalyzed C-H Functionalizations of Alkanes Utilizing Alcohols as Hydrogen Atom Transfer Agents
An, Qing,Chen, Yuegang,Liu, Weimin,Pan, Hui,Wang, Xin,Wang, Ziyu,Zhang, Kaining,Zuo, Zhiwei
supporting information, p. 6216 - 6226 (2020/04/27)
Modern photoredox catalysis has traditionally relied upon metal-to-ligand charge-transfer (MLCT) excitation of metal polypyridyl complexes for the utilization of light energy for the activation of organic substrates. Here, we demonstrate the catalytic application of ligand-to-metal charge-transfer (LMCT) excitation of cerium alkoxide complexes for the facile activation of alkanes utilizing abundant and inexpensive cerium trichloride as the catalyst. As demonstrated by cerium-catalyzed C-H amination and the alkylation of hydrocarbons, this reaction manifold has enabled the facile use of abundant alcohols as practical and selective hydrogen atom transfer (HAT) agents via the direct access of energetically challenging alkoxy radicals. Furthermore, the LMCT excitation event has been investigated through a series of spectroscopic experiments, revealing a rapid bond homolysis process and an effective production of alkoxy radicals, collectively ruling out the LMCT/homolysis event as the rate-determining step of this C-H functionalization.
OXATHIAZINE DERIVATIVES SUBSTITUTED WITH CARBOCYCLES OR HETEROCYCLES, METHOD FOR PRODUCING SAME, DRUGS CONTAINING SAID COMPOUNDS, AND USE THEREOF
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Paragraph 0399, (2014/02/15)
The invention relates to the compounds of formula (I) and physiologically acceptable salts thereof. The compounds are suitable, e.g., for treating hyperglycemia.
Selective monoalkylation of ammonia: A high throughput synthesis of primary amines
Bhattacharyya, Sukanta,Neidigh, Kurt A.,Avery, Mitchell A.,Williamson, John S.
, p. 1781 - 1783 (2007/10/03)
Primary amines are obtained in good to excellent yields by highly selective monoalkylation of ammonia with alkyl and aryl ketones using titanium(IV) isopropoxide and sodium borohydride.