reaction in the chemical industry. A large proportion of SM couplings employ dipolaraproticsolvents; however, current sustainability initiatives and increasingly stringent regulations advocate the use of alternatives that exhibit more desirable properties. Here we describe the scope and utility of the bio-derived solvent Cyrene™ in SM cross-couplings and evaluate its suitability as a reaction medium
Suzuki-Miyaura (SM) 交叉偶联是化学工业中使用最广泛的 Pd 催化的 C-C 键形成反应。大部分 SM 偶联剂使用偶极非质子溶剂;然而,当前的可持续性举措和日益严格的法规提倡使用具有更理想特性的替代品。在这里,我们描述了生物衍生溶剂 Cyrene™ 在 SM 交叉偶联中的范围和效用,并评估其作为反应介质的适用性,以实现从发现到克级规模的这一基准转化。
Oxone–acetone mediated Wacker-type oxidation of benzo-fused olefins
作者:Ravindra S. Phatake、Chepuri V. Ramana
DOI:10.1016/j.tetlet.2015.04.102
日期:2015.6
oxone–acetone combination for the Wacker-type oxidation of indenes and dihydronaphthalenes leading, respectively, to indan-2-ones and 2-tetralones. The amount of the base employed in the reaction seems to switch the reaction path from dioxygenation to Wacker-type oxidation. Control experiments suggest that the reaction is not proceeding via the epoxide route and also that there is no role of trace amounts