作者:Richard Y. Liu、Yujing Zhou、Yang Yang、Stephen L. Buchwald
DOI:10.1021/jacs.8b13907
日期:2019.2.13
Allene (C3H4) gas is produced and separated on million-metric-ton scale per year during petroleum refining but is rarely employed in organic synthesis. Meanwhile, the addition of an allyl group (C3H5) to ketones is among the most common and prototypical reactions in synthetic chemistry. Herein, we report that the combination of allene gas with inexpensive and environmentally benign hydrosilanes, such
丙二烯 (C3H4) 气体在石油精炼过程中以每年百万公吨的规模生产和分离,但很少用于有机合成。同时,向酮添加烯丙基 (C3H5) 是合成化学中最常见和最典型的反应之一。在此,我们报告了丙二烯气体与廉价且对环境无害的氢硅烷(如 PMHS)的组合,可以替代大多数对映选择性酮烯丙基化反应所需的化学计量数量的烯丙基金属试剂。该过程由铜盐和市售配体催化,无需专门设备或加压即可运行,并且可耐受广泛的官能团。此外,