An expedient route to substituted dihydrochalcones is reported. The key step is a palladium-assisted arylation of 1-aryl-2-propen-1-ols. This two-step/one-purification process allows the synthesis of a wide range of compounds with original substitution patterns, including polyphenolic derivatives.
Ethanol: Unlocking an Abundant Renewable C
<sub>2</sub>
‐Feedstock for Catalytic Enantioselective C−C Coupling
作者:Cole C. Meyer、Nicholas P. Stafford、Melinda J. Cheng、Michael J. Krische
DOI:10.1002/anie.202102694
日期:2021.5.3
production at >85 million tons/year, ethanol is the world's largest‐volume renewable small molecule carbon source, yet its use as a C2‐feedstock in enantioselective C−C coupling is unknown. Here, the first catalytic enantioselective C−C couplings of ethanol are demonstrated in reactions with structurally complex, nitrogen‐rich allylic acetates incorporating the top 10 N‐heterocycles found in FDA‐approved
乙醇的年产量超过 8500 万吨/年,是世界上产量最大的可再生小分子碳源,但其在对映选择性 C−C 偶联中作为 C 2原料的用途尚不清楚。在这里,乙醇的第一个催化对映选择性 C−C 偶联在与结构复杂、富含氮的烯丙乙酸酯的反应中得到证实,其中含有 FDA 批准的药物中发现的前 10 个氮杂环。