Various olefins are hydrated with molecular oxygen (oxidant) and a secondary alcohol (reductant) in the presence of a catalytic amount of bis(trifluoroacetylacetonato)cobalt(II) in good yields.
在催化量的双(三氟乙酰丙酮合)钴 (II) 存在下,各种烯烃与分子氧(氧化剂)和仲醇(还原剂)以良好的产率水合。
Carbon Nitride Photoredox Catalysis Enables the Generation of the Dioxolanyl Radical for Conjugate Addition Reactions
作者:Viktoria C. Gerken、Erick M. Carreira
DOI:10.1021/acscatal.2c03229
日期:2022.9.2
Graphitic carbon nitride (g-C3N4) is used as photocatalyst in the Giese reaction of dioxolane and a wide variety of electron-deficient olefins. The catalyst is shown to be reusable over five cycles with no changes in catalyst composition, morphology, and characteristics observed by scanning electron microscopy, elemental analysis, infrared spectroscopy, and powder X-ray diffraction.
石墨氮化碳 (gC 3 N 4 ) 在二氧戊环和多种缺电子烯烃的 Giese 反应中用作光催化剂。经扫描电子显微镜、元素分析、红外光谱和粉末 X 射线衍射观察,该催化剂可重复使用五个循环,催化剂组成、形态和特性没有变化。
Practical β-masked formylation and acetylation of electron-deficient olefins utilizing tetra(n-butyl)ammonium peroxydisulfate
作者:Jae Chul Jung、Yong Hae Kim、Kieseung Lee
DOI:10.1016/j.tetlet.2011.06.116
日期:2011.9
Various electron-deficient olefins reacted readily with 1,3-dioxolane or 2-methyl-1,3-dioxlane in the presence of TBAP to afford the corresponding 1,3-dioxolanylated or 2-methyl-1,3-dioxolanylated products in a complete regioselective manner in good to excellent yields. (C) 2011 Elsevier Ltd. All rights reserved.
Kim, Yong Hae; Jung, Jae Chul; Choi, Hyun Chul, Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 96, # 1-4, p. 431 - 434
作者:Kim, Yong Hae、Jung, Jae Chul、Choi, Hyun Chul
DOI:——
日期:——
Photochemical Synthesis of 4-Oxobutanal Acetals and of 2-Hydroxycyclobutanone Ketals
substituted) in 1,3-dioxolane in the presence of a sensitizer (benzophenone or anthraquinone) led to 4-oxobutanal acetals in fair to excellent yield through a very simple procedure (workup in most cases by bulb-to-bulb distillation). The resulting acetals were irradiated to give 2-hydroxycyclobutanone ketals, again through a simple procedure that gave a good yield with open-chain aliphatic derivatives.