formations between allyl carbonates and nontoxic allyl, allenyl, or propargyl boronates. This report represents the first use of these types of boronicesters in this particular context. The present transformations proceeded with high selectivity under remarkably mild conditions, and various functional groups including an aldehyde function proved to be compatible. In addition, several boronates were found
We developed catalytic intermolecular C(sp(3))-C(sp(3)) cross-couplings between various allyl alcohols and allyl boronates, which proceeded smoothly in the presence of nickel(0) under mild conditions to form 1,5-dienes with excellent linear- and gamma-selectivity; the use of boronates proved to be crucial in terms of reactivity.
Stereoselective Pd-Catalyzed Remote Hydroamination of Skipped Dienes with Azoles
作者:Jian Li、Guo-Qiang Lin、Zhi-Tao He、Han-Zhe Miao、Yang Liu、Ye-Wei Chen、Han-Yu Lu
DOI:10.1055/a-1916-2937
日期:2023.3
A novel palladium-catalyzed stereoselective remote hydroamination reaction is disclosed. A series of azoles and skipped dienes undergo the migratory allylic C–H amination in good yields and selectivities. A desymmetric migratory azolation process is also developed to highlight the reliability of the transformation. Preliminary mechanistic experiments corroborate the designed metal walking and allylic