29622-02-4Relevant academic research and scientific papers
Ru-Catalyzed Chemo- And Enantioselective Hydrogenation of 2,4-Pentadien-1-ones: Synthesis of Chiral 2,4-Pentadien-1-ols
Li, Chengyang,Lu, Wenkui,Lu, Bin,Li, Wanfang,Xie, Xiaomin,Zhang, Zhaoguo
, p. 16086 - 16094 (2019/12/24)
The asymmetric hydrogenation of 2,4-pentadien-1-ones has been achieved by using trans-RuCl2[(R)-XylylSunPhos][(R)-Daipen] as a catalyst under basic conditions. This hydrogenation demonstrated exclusive C1-carbonyl selectivity, and thus the conjugated 2,4-diene motifs remained untouched, which provides a synthetically useful method for various chiral 2,4-pentadien-1-ols.
Regio- and Enantioselective Copper-Catalyzed 1,4-Conjugate Addition of Trimethylaluminium to Linear α,β,γ,δ-Unsaturated Alkyl Ketones
Wu, Xiaoting,Xie, Fang,Ling, Zheng,Tang, Liang,Zhang, Wanbin
supporting information, p. 2510 - 2518 (2016/08/16)
A regio- and enantioselective copper-catalyzed 1,4-conjugate addition of trimethylaluminium to linear δ-aryl-substituted α,β,γ,δ-unsaturated alkyl ketones was developed. A series of γ,δ-unsaturated alkyl ketones were obtained in good yields with high regio- and enantioselectivity (up to 88% ee and 96:4 dr). Expansion of the reaction scope to substrates containing aromatic heterocycles also afforded good yields and enantioselectivities (up to 91% ee) with very high regioselectivities, exclusively providing the single 1,4-products. (Figure presented.).
Synthesis of substituted hexa-3,5-dienoic acid methyl esters from conjugated dienones
Nongkhlaw,Nongrum,Myrboh
, p. 1300 - 1303 (2007/10/03)
Substituted hexa-3,5-dienoic acid methyl esters (2) were conveniently prepared in one step by 1,2-carbonyl transposition of the corresponding dienones (1) using lead(IV) acetate and boron trifluoride-diethyl ether in benzene at room temperature.
Unsaturated Oximes, XXIV: 6-Phenyl-3,5-hexadien-2-ones, 7-Phenyl-4,6-heptadien-3-ones and Their Oximes
Unterhalt, Bernard,Weyrich, Klaus
, p. 913 - 918 (2007/10/02)
Substituted cinnamyl aldehydes are condensed with acetone and butanone.The structures of the resulting unsaturated ketones and their oximes are discussed.
