Fast and Green Microwave-Assisted Conversion of Essential Oil Allylbenzenes into the Corresponding Aldehydes via Alkene Isomerization and Subsequent Potassium Permanganate Promoted Oxidative Alkene Group Cleavage
作者:Thi X. Luu、Trinh Lam、Thach Le、Fritz Duus
DOI:10.3390/molecules14093411
日期:——
been converted quickly and efficiently into the corresponding benzaldehydes in good yields by a two-step “green” reaction pathway based on a solventless alkene group isomerization by KF/Al2O3 to form the corresponding 1-arylpropene and a subsequent solventless oxidation of the latter to the corresponding benzaldehyde by KMnO4/CuSO4 5H2O. The assistance by microwave irradiation results in very short
Hydrophilic (η<sup>6</sup>-Arene)–Ruthenium(II) Complexes with P–OH Ligands as Catalysts for the Isomerization of Allylbenzenes and C–H Bond Arylation Reactions in Water
Half-sandwich ruthenium(II) complexes containing η6-coordinated 3-phenylpropanol and phosphinous-acid-type ligands, namely, [RuCl2(η6-C6H5CH2CH2CH2OH)P(OH)R2}] (R = Me (2a), Ph (2b), 4-C6H4CF3 (2c), 4-C6H4OMe (2d), OMe (2e), OEt (2f), and OPh (2g), have been synthesized in 44–88% yield by reacting [RuCl2η6:κ1(O)-C6H5CH2CH2CH2OH}] (1) with the appropriate pentavalent phosphorus oxide R2P(═O)H. The
含η半夹心钌(II)配合物6配位的3-苯基丙醇和亚膦酸基型配体,即,将[RuCl 2(η 6 -C 6 H ^ 5 CH 2 CH 2 CH 2 OH)P(OH) R 2 }](R = Me(2a),Ph(2b),4-C 6 H 4 CF 3(2c),4-C 6 H 4 OMe(2d),OMe(2e),OEt(2f),和OPh(2克),已在44-88%的产率通过反应而合成将[RuCl 2 η 6:κ 1(Ò)-C 6 H ^ 5 CH 2 CH 2 CH 2 OH}](1)与适当的五价磷氧化物R 2 P(= O)H。的结构将[RuCl 2(η 6 -C 6 H ^ 5 CH 2 CH 2 CH 2 OH)P(OH)Me 2 }](2A)通过X射线衍射方法进行了明确地证实。化合物2a – g被证明是催化活性在allylbenzenes的异构化为相应的(1-丙烯基)采用水作为唯一的反应溶剂,用将[RuCl苯衍生物2(η
The present invention relates to an ionic liquid system for enhanced delivery and/or deposition of a perfume raw material onto a substrate, particularly fabric, hard surfaces, soft surfaces, skin, or hair. The invention also relates to consumer products comprising the new ionic liquid systems, and processes for making and methods of using such ionic liquid systems and consumer products.
Cyclic siloxanes that contain releasable active ingredients are described. The active ingredient can be an alcohol or enolizable carbonyl-containing compound such as a ketone, aldehyde, or ester. The product siloxanes are useful in a variety of personal and household care products where slow or controlled release of active ingredient is desired. A preferred embodiment utilizes substituents that when released as active ingredients are fragrant.