An electrostatically directed meta borylation of sterically biased and unbiased substrates is described. The borylation follows an electrostatic interaction between the partially positive and negative charges between the ligand and substrate. With this strategy, it has been demonstrated that a wide number of challenging substrates, especially 4-substituted substrates, can selectively be borylated at
Denitrogenative Suzuki and carbonylative Suzuki coupling reactions of benzotriazoles with boronic acids
作者:Yuanhao Wang、Yunfei Wu、Yuanhe Li、Yefeng Tang
DOI:10.1039/c7sc00367f
日期:——
The unprecedented palladium-catalyzed denitrogenative Suzuki and carbonylative Suzukicoupling reactions of benzotriazoles with boronic acids have been realized, which afforded structurally diverse ortho-amino-substituted biaryl and biaryl ketone derivatives. Key to...
Substituted azole derivatives, compositions, and methods of use
申请人:Mjalli M.M. Adnan
公开号:US20050187277A1
公开(公告)日:2005-08-25
The present invention provides azole derivatives of Formula (I), methods of their preparation, pharmaceutical compositions comprising the compounds of Formula (I), and their use in treating human or animal disorders. The compounds of the invention can be useful as inhibitors of protein tyrosine phosphatases and thus can be useful for the management, treatment, control, or the adjunct treatment of diseases mediated by PTPase activity. Such diseases include Type I diabetes and Type II diabetes.
Palladium-Catalyzed Formal (5 + 2) Annulation between <i>ortho</i>-Alkenylanilides and Allenes
作者:Borja Cendón、Noelia Casanova、Cezar Comanescu、Rebeca García-Fandiño、Andrés Seoane、Moisés Gulías、José L. Mascareñas
DOI:10.1021/acs.orglett.7b00467
日期:2017.4.7
2-Alkenyltriflylanilides react with allenes upon treatment with catalytic amounts of Pd(OAc)(2) and Cu(II) to give highly valuable: 2,3-dihydro-1H-benzo[b]azepines, in good yields, and with very high regio- and diastereoselectivities. Density functional theory (DFT) calculations suggest that the C-H activation of the alkenylanilide involves a classical concerted metalation-deprotonation (CMD) mechanism.
Antiinflammatory fluoroalkanesulfonanilides. 3. Other fluoroalkanesulfonamido diaryl systems
作者:G. G. I. Moore、J. K. Harrington、K. F. Swingle
DOI:10.1021/jm00238a013
日期:1975.4
A series of isosteres of 3-benzoyltrifluoromethanesulfonanilide involving alternatives to the carbonyl linking group was synthesized and screened for antiinflammatory activity in the carrageenan rat paw edema test. The systems examined were of the type m-CF3SO2NH-C6H4-X-C6H5, where X was -CROH-, -CHR-, -CH(OH)CH2-, -COCH2-, -CH2CO-, greater than C equal to CR2, -CR equal to CH, -C identical to C-, -CH2CH2-, CONH-, -NR-, -O-, -S(O)n- (n equal to 0,1,2), and carbon-carbon single bond. Many ortho and para derivatives were also tested. Several of these new trifluoromethanesulfonanilides proved equipotent with phenylbutazone. The effects on the anticarrageenan activity of both the nature and ring position of X are discussed.