Hydrocobaltation–dehydrocobaltation reactions in synthesis: a new approach to the controlled cross-coupling between sp<sup>2</sup>carbon centres leading to functionalised alkenes
作者:Harcharan Bhandal、Gerald Pattenden
DOI:10.1039/c39880001110
日期:——
Cross-couplingreactionsbetween two alkenes, leading to newfunctionalisedalkenes, can be brought about via‘hydrocobaltation’ of one of the alkenes followed by irradiation of the resulting organocobalt reagent in the presence of the second alkene substrate.
1,2-Dihydroquinolines and a 1,2,3,4-tetrahydroquinoline were efficiently constructed using tandem Michael-aldol reaction starting from N-protected o-aminobenzaldehydes and α,β-unsaturated carbonyl compounds in good yield.
KRAS G12C inhibitors and methods of using the same
申请人:Amgen Inc.
公开号:US10519146B2
公开(公告)日:2019-12-31
Provided herein are KRAS G12C inhibitors, composition of the same, and methods of using the same. These inhibitors are useful for treating a number of disorders, including pancreatic, colorectal, and lung cancers.
Copper-Catalyzed Tandem Conjugate Addition−Electrophilic Trapping: Ketones, Esters, and Nitriles as Terminal Electrophiles
作者:Kyriacos Agapiou、David F. Cauble、Michael J. Krische
DOI:10.1021/ja030603l
日期:2004.4.1
Exposure of enone substrates 1a-18a, which possess appendant ketone, ester, and nitrile moieties, to Et2Zn in the presence of catalytic Cu(OTf)2/P(OEt)3 provides the cyclized products in good to excellent yields and diastereoselectivities. These results represent the first use of ketones, esters, and nitriles as terminal electrophiles in Cu-catalyzed conjugate addition-electrophilic trapping.
Bhandal, Harcharan; Howell, Amy R.; Patel, Vinod F., Journal of the Chemical Society. Perkin transactions I, 1990, # 10, p. 2709 - 2714