5664-10-8Relevant articles and documents
Organoselenium-Catalyzed Regioselective C?H Pyridination of 1,3-Dienes and Alkenes
Liao, Lihao,Guo, Ruizhi,Zhao, Xiaodan
supporting information, p. 3201 - 3205 (2017/03/17)
An efficient approach for organoselenium-catalyzed regioselective C?H pyridination of 1,3-dienes to form pyridinium salts has been developed. This method was also successfully applied to direct C?H pyridination of alkenes. Fluoropyridinium reagents, or initially loaded pyridine derivatives, acted as pyridine sources in the pyridination reactions. The obtained pyridinium salts could be further converted under different conditions. This work is the first example of catalytic C-2 direct C?H functionalization of 1,3-dienes and the first case of organoselenium-catalyzed C?H pyridination.
Method of manufacturing compds. Allylnaphthol
-
Paragraph 0029-0041; 0049, (2018/08/23)
PROBLEM TO BE SOLVED: To provide a method for producing allyl compounds by dehydrative allylation of allyl alcohols and the like in the presence of a catalyst system consisting of a catalyst precursor and a ligand. SOLUTION: In the method for producing allyl compounds: the catalyst precursor consisting of a complex compound having a ruthenium atom is mixed with an (S, S) or (R, R) type ligand having a specific structure; and then, the allyl alcohols and a substrate are mixed to be reacted with each other. In the allyl alcohols: a carbon atom and a hydrogen atom are connected to a carbon atom in the third position or a carbon atom is connected to a carbon atom in the first position; and these carbon atoms are sp2or sp hybridized carbon atoms or these carbon atoms are connected to carbon atoms only. The substrate is a cyclic compound having carbonyl groups in the first and third positions and having a carbon atom in the second position wherein the carbon atom is connected to a carbon atom or a hydrogen atom. COPYRIGHT: (C)2013,JPO&INPIT
Catalytic enantioselective 1,2-diboration of 1,3-dienes: Versatile reagents for stereoselective allylation
Kliman, Laura T.,Mlynarski, Scott N.,Ferris, Grace E.,Morken, James P.
supporting information; experimental part, p. 521 - 524 (2012/03/11)
More with boron: The development of catalytic enantioselective 1,2-diboration of 1,3-dienes enables a new strategy for enantioselective carbonyl allylation reactions (see scheme). These reactions occur with outstanding levels of stereoselection and can be applied to both monosubstituted and 1,1-disubstituted dienes. The carbonyl allylation reactions provide enantiomerically enriched functionalized homoallylic alcohol products. Copyright
