Transforming Benzylic Amines into Diarylmethanes: Cross-Couplings of Benzylic Pyridinium Salts via C–N Bond Activation
作者:Jennie Liao、Weiye Guan、Brian P. Boscoe、Joseph W. Tucker、John W. Tomlin、Michelle R. Garnsey、Mary P. Watson
DOI:10.1021/acs.orglett.8b01062
日期:2018.5.18
nickel-catalyzed cross-coupling of benzylic pyridiniumsalts with arylboronic acids was developed. Coupled with chemoselective pyridinium formation, this method allows benzyl primary amines to be efficiently converted to di(hetero)arylmethanes. Excellent heteroaryl and functional group tolerance is observed, and a one-pot procedure enables benzylic amines to be converted to diarylmethanes directly.
Flow chemistry as a discovery tool to access sp<sup>2</sup>–sp<sup>3</sup>cross-coupling reactions via diazo compounds
作者:Duc N. Tran、Claudio Battilocchio、Shing-Bong Lou、Joel M. Hawkins、Steven V. Ley
DOI:10.1039/c4sc03072a
日期:——
The room temperature sp2–sp3cross-coupling of flow-generated diazo compounds with boronic acids is reported.
报道了流动生成的重氮化合物与硼酸的室温sp2–sp3交叉偶联反应。
5-HYDROXYPYRIMIDINE-4-CARBOXAMIDE COMPOUND
申请人:Kuribayashi Takeshi
公开号:US20110112103A1
公开(公告)日:2011-05-12
The present invention provides compounds which promote erythropoietin production. Compounds represented by the following general formula (1) or pharmacologically acceptable salts thereof are provided:
[wherein, R
1
represents a group —X-Q
1
, X-Q
1
-Y-Q
2
or X-Q
1
-Y-Q
2
-Z-Q
3
, X represents a single bond, —CH
2
— or the like, Q
1
represents a monocyclic or bicyclic heterocyclic group which may have substituent(s), Y represents a single bond, —CH
2
—, or the like, Q
2
represents a monocyclic or bicyclic hydrocarbon ring group which may have substituent(s) or a monocyclic or bicyclic heterocyclic group which may have substituent(s), Z represents a single bond, —CR
11
R
12
— or the like, R
11
and R
12
each independently represents a hydrogen atom, a halogen atom or the like, Q
3
represents a phenyl group which may have substituent(s), a C
3
-C
7
cycloalkyl group which may have substituent(s), a C
3
-C
7
cycloalkenyl group which may have substituent(s) or a monocyclic or bicyclic heterocyclic group which may have substituent(s), R
2
represents a C
1
-C
3
alkyl group or the like, and R
3
represents a hydrogen atom or a methyl group].