1258456-56-2Relevant academic research and scientific papers
Modulation of the coordination geometries of NCN and NCNC Rh complexes for ambidextrous chiral catalysts
Ito, Jun-Ichi,Ishihara, Takahiro,Fukuoka, Takaki,Binti Mat Napi, Siti Rokiah,Kameo, Hajime,Nishiyama, Hisao
, p. 12765 - 12768 (2019)
A chirality switch between novel NCN pincer Rh complexes and a related double cyclometalated NCNC Rh complex containing secondary amino groups is described. Their catalytic abilities were determined in asymmetric alkynylation of ethyl trifluoropyruvate, a
Octahedral Ruthenium Complex with Exclusive Metal-Centered Chirality for Highly Effective Asymmetric Catalysis
Zheng, Yu,Tan, Yuqi,Harms, Klaus,Marsch, Michael,Riedel, Radostan,Zhang, Lilu,Meggers, Eric
supporting information, p. 4322 - 4325 (2017/04/06)
A novel ruthenium catalyst is introduced which contains solely achiral ligands and acquires its chirality entirely from octahedral centrochirality. The configurationally stable catalyst is demonstrated to catalyze the alkynylation of trifluoromethyl ketones with very high enantioselectivity (up to >99% ee) at low catalyst loadings (down to 0.2 mol%).
Chiral NCN pincer rhodium(III) complexes with bis(imidazolinyl)phenyl ligands: Synthesis and enantioselective catalytic alkynylation of trifluoropyruvates with terminal alkynes
Wang, Tao,Niu, Jun-Long,Liu, Shuang-Liang,Huang, Juan-Juan,Gong, Jun-Fang,Song, Mao-Ping
, p. 927 - 937 (2013/05/08)
A series of new chiral C2-symmetrical NCN pincer rhodium(III) complexes with bis(imidazolinyl)phenyl ligands have been conveniently synthesized from easily available materials. The complexes were subsequently applied in the enantioselective add
C1-symmetric Rh/Phebox-catalyzed asymmetric alkynylation of α-ketoesters
Ohshima, Takashi,Kawabata, Takahito,Takeuchi, Yosuke,Kakinuma, Takahiro,Iwasaki, Takanori,Yonezawa, Takayuki,Murakami, Hajime,Nishiyama, Hisao,Mashima, Kazushi
supporting information; experimental part, p. 6296 - 6300 (2011/09/13)
Thinking outside the box: A newly developed C1-symmetric Rh/Phebox complex efficiently catalyzed the asymmetric alkynylation of α-ketoester 1 with various aryl and alkyl substituted terminal alkynes to provide the corresponding chiral tertiary propargylic alcohols with up to 99 % ee (see scheme; TMS=trimethylsilyl). Copyright
Highly enantioselective alkynylation of trifluoropyruvate with alkynylsilanes catalyzed by the BINAP - Pd complex: Access to -trifluoromethyl-substituted tertiary alcohols
Aikawa, Kohsuke,Hioki, Yuta,Mikami, Koichi
supporting information; experimental part, p. 5716 - 5719 (2011/03/23)
A highly enantioselective alkynylation catalyzed by the dicationic (S)-BINAP - Pd complex with a variety of alkynylsilanes and trifluoropyruvate is described. The catalytic reaction is applicable to highly enantioselective addition of polyyne to trifluoro
