Palladium-Catalyzed Enantioselective Hydrohydrazonation of 1,3-Dienes
作者:Shaozi Sun、Qinglong Zhang、Weiwei Zi
DOI:10.1021/acs.orglett.3c02729
日期:2023.12.1
We presented a method for synthesizing allylic chiral hydrazones from 1,4-disubstituted 1,3-dienes and hydrazones through a (R)-DTBM-Segphos-Pd(0)-catalyzed hydrohydrazonation reaction. This transformation has a wide range of substrates and good functional group tolerance. The desired products were obtained in medium to high yield and good regio- and enantioselectivity. Synthetic transformation of
我们提出了一种通过 ( R )-DTBM-Segphos-Pd(0) 催化的氢腙反应从 1,4-二取代 1,3-二烯和腙合成烯丙基手性腙的方法。该转化具有广泛的底物范围和良好的官能团耐受性。以中等至高产率和良好的区域选择性和对映选择性获得了所需产物。证明了产物合成转化为各种含氮手性化合物。
The aromatic Cope rearrangement. Thermal reactions of cis-1-aryl-2-vinylcyclopropanes
作者:Elliot N. Marvell、Crystal Lin
DOI:10.1021/ja00471a036
日期:1978.2
DE544388
申请人:——
公开号:——
公开(公告)日:——
Palladium-catalyzed syntheses of aryl polyenes
作者:Takiaki Mitsudo、William Fischetti、Richard F. Heck
DOI:10.1021/jo00183a029
日期:1984.5
Nickel/Brønsted acid dual-catalyzed regio- and enantioselective hydrophosphinylation of 1,3-dienes: access to chiral allylic phosphine oxides
作者:Jiao Long、Yuqiang Li、Weining Zhao、Guoyin Yin
DOI:10.1039/d1sc05651d
日期:——
While chiral allylic organophosphorus compounds are widely utilized in asymmetric catalysis and for accessing bioactive molecules, their synthetic methods are still very limited. We report the development of asymmetric nickel/Brønsted acid dual-catalyzed hydrophosphinylation of 1,3-dienes with phosphine oxides. This reaction is characterized by an inexpensive chiral catalyst, broad substrate scope