Laboratoire de Synthèse, Réactivité Organiques et Catalyse, Institut de Chimie, UMR 7177 - CNRS , Université de Strasbourg , 4 rue Blaise Pascal , 67070 Strasbourg , France.
Org Lett. 2019 Jul 19;21(14):5542-5546. doi: 10.1021/acs.orglett.9b01860. Epub 2019 Jun 27.
We report the first general conditions for the challenging Suzuki-Miyaura reaction with pyrrole-related sulfonate coupling partners (24 examples, 60-97%). Bis(dichloro)bis(2-dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl)palladium(II) precatalyst ensures the high efficiency of the reaction. The total synthesis of rhazinilam, a monoterpenoid indole alkaloid, highlights such cross-coupling as well as the simple preparation of pyrrolyl sulfonates by -to- 1,5-sulfonyl migration catalyzed by gold(I) (15 examples, 54-93%).
我们报告了首例具有挑战性的吡咯相关磺酸酯偶联物的铃木-宫浦反应的一般条件(24 个实例,60-97%)。双(二氯)双(2-二环己基膦-2',4',6'-三异丙基联苯)钯(II)前催化剂确保了反应的高效率。雷扎尼拉姆,一种单萜吲哚生物碱的全合成,突出了这种交叉偶联以及通过金(I)催化的 -到- 1,5-磺酰基迁移简单制备吡咯基磺酸酯(15 个实例,54-93%)。