作者:Romero Reyes, Moises A.、Dutta, Subhradeep、Odagi, Minami、Min, Chang、Seidel, Daniel
DOI:10.1039/d4sc04760e
日期:——
A new conjugate-base-stabilized carboxylic acid (CBSCA) containing a 3,5-bis(pentafluorosulfanyl)phenylthiourea functionality catalyses challenging one-pot condensations/6π-electrocyclizations of hydrazines and α,β-unsaturated ketones under mild conditions. Structurally diverse N-aryl 2-pyrazolines are obtained in good yields and enantioselectivities. The superior performance of 3,5-bis(SF5)phenylthioureas
一种新型共轭碱稳定的羧酸 (CBSCA),含有 3,5-双(五氟硫基)苯基硫脲官能团,可在温和条件下催化肼和 α,β-不饱和酮的一锅缩合/6π-电环化反应。以良好的产率和对映选择性获得了结构多样的N-芳基 2-吡唑啉。 3,5-双(SF 5 )苯基硫脲相对于广泛使用的3,5-双(CF 3 )苯基硫脲的优越性能在使用新型竹本型催化剂的丙二酸二甲酯与硝基苯乙烯的迈克尔加成中得到进一步证明。