470666-16-1Relevant academic research and scientific papers
Diarylmethanols synthesis by nickel(II)-catalyzed addition of arylboronic acids to aryl aldehydes
Bie, Fusheng,Cao, Han,Cui, Haizhu,Li, Tang,Liu, Xuejing,Ma, Jie,Wang, Meng
supporting information, p. 248 - 253 (2020/04/24)
A practical procedure for the addition of arylboronic acids to aromatic aldehydes has been developed in the presence of NiCl2(PPh3)2/1,3-bis-(2,6-diisopropylphenyl)imidazolium chloride (IPr·HCl) system with good yield. Generally, electron-rich and-neutral aryl aldehydes showed excellent reactivity and provided desired products in high yields. This procedure will provide new way to the synthesis of diarylmethanols.
Di(hetero)arylmethanol compound preparation method
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Paragraph 0047; 0048; 0049; 0059; 0060; 0061, (2019/02/10)
The invention belongs to the field of organic synthesis, and particularly relates to a di(hetero)arylmethanol compound preparation method, wherein the di(hetero)arylmethanol compound is prepared in ahigh-yield manner by using commercially available (hetero)aryl aldehyde and commercially available (hetero)arylboronic acid as raw materials and using a cheap and stable divalent nickel source as a catalyst. According to the present invention, the method improves the shortcomings of harsh reaction conditions, more side reactions, difficult post-treatment and the like caused by the general use of metal reagents, avoids the defects of high cost of catalytic reactions of noble metals such as palladium and the like and difficulty in mass production, has characteristics of mild conditions, convenient operation, low cost, high efficiency and environmental friendliness, and is suitable for practical scale production.
Vinylogous acid derivatives
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Page/Page column 14, (2008/06/13)
The invention is concerned with novel vinylogous acid derivatives of formula I: wherein A and R1 to R5 are as defined in the description and in the claims, as well as physiologically acceptable salts thereof. These compounds are usef
Electroorganic reactions. Part 56: Anodic oxidation of 2-methyl- and 2-benzylnaphthalenes: Factors influencing competing pathways
Utley, James H.P,Rozenberg, Gregor G
, p. 5251 - 5265 (2007/10/03)
A systematic investigation of the anodic oxidation in nucleophilic media of 2-methyl and 2-benzylnaphthalenes, substituted at the 6-position in the naphthalene nucleus and at the 4-phenyl position of the benzylic side chain, has been carried out to identify factors favouring side-chain substitution. Cyclic voltammetry confirms that 6-substitution has a profound effect on the oxidation potentials of the naphthalene nucleus and 13C chemical shifts indicate polar effects at the benzylic carbon. However, little side-chain anodic oxidation is observed under any conditions tried; the radical-cations of electron-rich substrates preferentially dimerise and a strongly electron-withdrawing substituent at the 6-position (EtOSO2) promotes nuclear substitution. In contrast, oxidation with DDQ in aqueous acetic acid gives efficient side-chain oxidation for electron rich substrates, consistent with hydride transfer, possibly intramolecularly via a charge transfer complex.
