Research on antibacterial and antifungal agents. 16. Synthesis and antifungal activities of 1-[α-(1-naphthyl)benzyl]imidazole derivatives and related 2-naphthyl isomers
摘要:
Some 1-arylmethylimidazoles bearing a naphthyl group at the a position of benzyl moiety have been synthesized and tested as antifungal agents against Candida albicans and Candida spp. Such derivatives resemble bifonazole and naftifine, two important antimycotic agents of clinical use. Various compounds were found highly active when tested against Candida strains in comparison with bifonazole, miconazole, clotrimazole and ketoconazole.
described. This development allowed the asymmetric nickel-catalyzed 1,2-addition of arylboronreagents to aromatic aldehydes. The enantioselectivity is synthetically acceptable (up to 81% ee) using 1-naphthaldehyde and 2-substituted aromatic aldehydes as substrates. The results have enantioselectivity comparable to the best results reported by us for the rhodium-catalyzed arylation of aromatic aldehydes.
Decarboxylative dearomatization and mono-α-arylation of ketones
作者:Shehani N. Mendis、Jon A. Tunge
DOI:10.1039/c6cc03672d
日期:——
We report the first example of a palladium-catalyzeddecarboxylative dearomatization reaction that occurs via Pd-[small pi]-benzyl intermediates. In fact, the Pd-catalyzed decarboxylativecross-coupling reaction of benzyl enol carbonates can lead to...
Arylative Desulfonation of Diarylmethyl Phenyl Sulfone with Arenes Catalyzed by Scandium Triflate
作者:Masakazu Nambo、Zachary T. Ariki、Daniel Canseco-Gonzalez、D. Dawson Beattie、Cathleen M. Crudden
DOI:10.1021/acs.orglett.6b00744
日期:2016.5.20
A scandium-triflate-catalyzed arylative desulfonation of diarylmethyl phenyl sulfones with arenes and heteroarenes was established. A variety of both sulfone and arene substrates were reacted to afford symmetric and nonsymmetric triarylmethanes in good yields. Further transformations of the resulting triarylmethanes and application to the concise synthesis of a bactericidal agent analogue were also demonstrated.
Use of cheaper metal than Rh, CHCl3-free Pd catalyst, in 1,2-addition of aromatic aldehydes with arylboronic acids
Pd(OAC)(2)-(+/-)-tol-BINAP-catalyzed arylation reaction of aromatic aldehydes with arylboronic acids in the absence of CHCl3 is described. (c) 2006 Published by Elsevier Ltd.
WITHDRAWN: Asymmetric Ni-catalyzed arylation of aromatic aldehydes with arylboroxines
作者:Takafumi Arao、Kazuhiro Kondo、Toyohiko Aoyama
DOI:10.1016/j.tet.2007.03.160
日期:2007.6
Development of asymmetric Ni-catalyzed 1,2-addition to aromatic aldehydes of arylboroxines is described. (c) 2007 Published by Elsevier Ltd.