Palladium-Catalyzed Allylic Arylation of Allylic Ethers with Arylboronic Acids Using Hydrazone Ligands
作者:Takashi Mino、Taketo Kogure、Taichi Abe、Tomoko Koizumi、Tsutomu Fujita、Masami Sakamoto
DOI:10.1002/ejoc.201201276
日期:2013.3
3-diarylpropenes were synthesized in good to high yields by the palladium-catalyzed allylic arylation of allylic ethers, such as a cinnamyl phenyl ether, with a variety of arylboronic acids using a hydrazone 1a–Pd(OAc)2 system in DMAc/H2O. Using this catalyst, eugenol was also synthesized from allyl phenyl ether with (4-hydroxy-3-methoxyphenyl)boronic acid pinacol ester.
在 DMAc 中使用腙 1a-Pd(OAc)2 系统,通过钯催化的烯丙基醚(如肉桂基苯基醚)与各种芳基硼酸的烯丙基芳基化,以良好至高产率合成了不对称的 1,3-二芳基丙烯/H2O。使用这种催化剂,丁香酚也由烯丙基苯基醚与(4-羟基-3-甲氧基苯基)硼酸频哪醇酯合成。