Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization
本文所公开的是用于官能化的2-苄基苯并[合成的有效合成路线b ]呋喃经由区域选择性5 -外-TRIG分子内的氧化环化邻-使用肉桂酚[的PdCl 2(CH 3 CN)2 ]作为催化剂和苯醌作为氧化剂。此外,使用由Re 2 O 7催化的肉桂醇对苯酚进行邻位邻肉桂酸化,然后使用上述Pd催化剂进行氧化环化。反应显示出广泛的底物范围,具有良好至优异的产率。
Etherification of Diarylmethanols and 1-Phenylalkan-1-ols Over Platinum on Carbon
作者:Thies Thiemann
DOI:10.2174/157017809789869564
日期:2009.10.1
In the presence of platinum on carbon (Pt/C), diarylmethanols and donor substituted 1-phenylalkan-1-ols undergo cross-etherification with primary and secondary alcohols.
B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>‐Catalyzed N‐Allylation of Hydrazines with Allylic Alcohols
作者:Boxia Xu、Ji Yang、Zhen Yao、Zhuo Yang、Kai Liu、Xing Jin、Lijin Xu、Qian Shi
DOI:10.1002/adsc.202301347
日期:2024.3.8
A N-allylation of monosubstituted acyl hydrazines with allylicalcohols has been developed by using B(C6F5)3 catalysis. This protocol allows for convenient access to various synthetically useful N-allylated hydrazine products in 48-96% yields with broad substrate scope and wide functional group compatibility. The operationally simple reaction proceeds without calling for stringent removal of air and