“One-Pot” Tandem C−H Borylation/1,4-Conjugate Addition/Reduction Sequence
摘要:
A microwave-assisted, one-pot, iridium-catalyzed aromatic C-H borylation/rhodium-catalyzed 1,4-conjugate addition sequence provides a highly robust protocol suitable for high-throughput array synthesis. Selective formation of either beta-aryl-substituted ketones or the corresponding alcohols can be achieved in good overall yields by simple variation of the reaction conditions.
Copper Catalyzed Defluoroarylation of <i>gem</i>-Difluoroallenes to Allenyl Monofluorides with Aryl Boronic Esters
作者:Yiming You、Jiawen Hu、Tao Wu
DOI:10.1021/acs.orglett.3c01583
日期:2023.6.23
studies have been performed on allenyl monofluorides, especially on aryl-substituted frames, due to concerns about their stability. Here we report a copper-catalyzed regioselective synthesis of such structures with inexpensive and accessible arylboronicesters under mild conditions. Arylated allenyl monofluorides were stable enough to be isolated and easily converted to various other fluorine-containing
ALKOHOLE MIT 3-METHYL- ODER 3,5-DIMETHYLPHENYLGRUPPEN, DEREN HERSTELLUNG UND VERWENDUNG ALS DUFTSTOFFE
申请人:Consortium für elektrochemische Industrie GmbH
公开号:EP0343182B1
公开(公告)日:1992-05-06
“One-Pot” Tandem C−H Borylation/1,4-Conjugate Addition/Reduction Sequence
作者:Hazmi Tajuddin、Lena Shukla、Aoife C. Maxwell、Todd B. Marder、Patrick G. Steel
DOI:10.1021/ol102518v
日期:2010.12.17
A microwave-assisted, one-pot, iridium-catalyzed aromatic C-H borylation/rhodium-catalyzed 1,4-conjugate addition sequence provides a highly robust protocol suitable for high-throughput array synthesis. Selective formation of either beta-aryl-substituted ketones or the corresponding alcohols can be achieved in good overall yields by simple variation of the reaction conditions.
Competitive photocyclization/rearrangement of 4-aryl-1,1-dicyanobutenes controlled by intramolecular charge-transfer interaction. Effect of medium polarity, temperature, pressure, excitation wavelength, and confinement
作者:Tadashi Ito、Emi Nishiuchi、Gaku Fukuhara、Yoshihisa Inoue、Tadashi Mori
DOI:10.1039/c1pp05038a
日期:2011.9
charge-transfer (C–T) interactions in the ground state. Photoexcitation of these C–T substrates led to competitive cyclization and rearrangement, the ratio being critically controlled by various environmental factors, such as solvent polarity, temperature and static pressure, and also by excitation wavelength and supramolecular confinement (polyethylene voids). In non-polar solvents, the rearrangement was