2944-48-1Relevant articles and documents
Catalysis by 12-Heteropolymolybdic Acid. II. Friedel-Crafts-type Reaction of Aromatic Compounds
Nomiya, Kenji,Sugaya, Yoshio,Sasa, Sadayoshi,Miwa, Makoto
, p. 2089 - 2090 (1980)
12-Heteropolymolybdic acid, a heteropolyacid of Keggin-structure, behaves as an effective catalyst of the Friedel-Crafts-type reactions for aromatic compounds, such as alkylation by benzyl chloride and t-butyl chloride, acylation by acetyl chloride, and sulfonylation by tosyl chloride.The catalyst mainly gives para-substiuted products for phenol and anisole.The reactions proceed via carbocation-generation mechanism brought about by the strong Broensted acid.
An N-heterocyclic carbene-based nickel catalyst for the Kumada–Tamao–Corriu coupling of aryl bromides and tertiary alkyl Grignard reagents
Ando, Shin,Mawatari, Mai,Matsunaga, Hirofumi,Ishizuka, Tadao
supporting information, p. 3287 - 3290 (2016/07/11)
In this study, nickel-catalyzed coupling reactions between arylhalides and tert-alkyl Grignard reagents were developed. Our original bicyclic NHC ligands reduced the formation of isomerized products, and we found that NMP as a co-solvent suppressed the reduction process. Under the optimal conditions we developed, the catalyst loading was lowered to 0.5?mol?%, and catalyst loading using ortho-substituted aryl bromides was also applicable at the level of 2.0?mol?%.
NOVEL AND SPECIFIC INHIBITORS OF CYTOCHROME P450 26 RETINOIC ACID HYDROLASE
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Page/Page column 58; 59, (2015/03/13)
The present disclosure is generally directed to compositions and methods for treating diseases that are ameliorated by the inhibition of CYP26 mediated retinoic acid metabolism.