Regio- and Stereoselective Synthesis of Diverse 3,4-Dihydro-2-quinolones through Catalytic Hydrative Cyclization of Imine- and Carbonyl-Ynamides with Water
作者:Bo-Han Zhu、Ying-Qi Zhang、Hao-Jin Xu、Long Li、Guo-Cheng Deng、Peng-Cheng Qian、Chao Deng、Long-Wu Ye
DOI:10.1021/acscatal.0c04786
日期:2021.2.5
herein is an efficient copper-catalyzed tandem alkyne hydration/intramolecular Mannich reaction of imine-ynamides with water. This method allows efficient and diastereodivergent synthesis of valuable 3,4-dihydro-2-quinolones with high regio-, diastereo-, and enantioselectivity. Moreover, this hydrativecyclization can also be applicable to the hydrative aldol reaction of carbonyl-ynamides with water to
Yttrium-Catalyzed Intramolecular Hydroalkoxylation/Claisen Rearrangement Sequence: Efficient Synthesis of Medium-Sized Lactams
作者:Bo Zhou、Long Li、Xin-Qi Zhu、Juan-Zhu Yan、Yi-Lin Guo、Long-Wu Ye
DOI:10.1002/anie.201700596
日期:2017.3.27
An efficient yttrium‐catalyzed intramolecular hydroalkoxylation/Claisen rearrangement sequence has been achieved, thus enabling facile access to a diverse array of valuable medium‐sized lactams. Furthermore, a mechanistic rationale for this novel cascade reaction is well supported by a variety of control experiments.