Intermolecular Photoaddition Reaction of Benzenecarbothioamide with g,d- Unsaturated Ketones: A Novel Formation of Cycloalkane-fused Pyridine Deriva- tives by Photoinduced Reaction
摘要:
Irradiation of benzenecarbothioamide with 2-(2-alkenyl)-cycloalkanone in benzene gives cycloalkane-fused pyridine derivatives in moderate yields.
Palladium-Catalyzed Allylic Alkylation of Simple Ketones with Allylic Alcohols and Its Mechanistic Study
作者:Xiaohong Huo、Guoqiang Yang、Delong Liu、Yangang Liu、Ilya D. Gridnev、Wanbin Zhang
DOI:10.1002/anie.201403410
日期:2014.6.23
Allylicalcohols were directly used in Pd‐catalyzed allylicalkylations of simpleketones under mild reaction conditions. The reaction proceeded smoothly at 20 °C by the concerted action of a Pd catalyst, a pyrrolidine co‐catalyst, and a hydrogen‐bonding solvent, and does not require any additional reagents. A computational study suggested that methanol plays a crucial role in the formation of the
Dual Palladium- and Proline-Catalyzed Allylic Alkylation of Enolizable Ketones and Aldehydes with Allylic Alcohols
作者:Ippei Usui、Stefan Schmidt、Bernhard Breit
DOI:10.1021/ol9001812
日期:2009.3.19
The dual Pd/proline-catalyzed α-allylation reaction of a variety of enolizable ketones and aldehydes with allylic alcohols is described. In this reaction, the choice of a large-bite angle ligand Xantphos and proline as the organocatalyst was essential for generation of the crucial π-allyl Pd intermediate from allylic alcohol, followed by nucleophilic attack of the enamine formed in situ from the corresponding
SYNTHESIS OF γ,δ-UNSATURATED KETONES BY THE INTRAMOLECULAR DECARBOXYLATIVE ALLYLATION OF ALLYL β-KETO CARBOXYLATES AND ALKENYL ALLYL CARBONATES CATALYZED BY MOLYBDENUM, NICKEL,AND RHODIUM COMPLEXES
作者:Jiro Tsuji、Ichiro Minami、Isao Shimizu
DOI:10.1246/cl.1984.1721
日期:1984.10.5
Allyl β-keto carboxylates and alkenyl allyl carbonates were converted to γ,δ-unsaturated ketones by the intramolecular decarboxylative allylation catalyzed by molybdenum, nickel, and rhodium complexes.
Stereoselectivity in nucleophilic addition to unsaturated ligands bound to molybdenum
作者:J.W. Faller、Lambert C.
DOI:10.1016/s0040-4020(01)91413-9
日期:1985.1
The stereochemistry and regiochemistry of nucleophilic addition to olefinic, allylic, or diene moieties can be controlled in reactions of molybdenum complexes. The synthesis of a wide range of α-allylic cyclohexanones is feasible using (η5-cyclopentadienyl)Mo(CO)(NO)(allyl) cations. The stereoselective preparation of (RS,SR)-2-(1-methyl-2-butenyl)cyclohexanone from the reaction of 1-pyrrolidino-1-cyclohexene