ChemInform Abstract: Piperazine-Functionalized Ordered Mesoporous Polymer as Highly Active and Reusable Organocatalyst for Water-Medium Organic Synthesis.

ChemInform ◽  
2013 ◽  
Vol 44 (40) ◽  
pp. no-no
Author(s):  
Fang Zhang ◽  
Xushi Yang ◽  
Lei Jiang ◽  
Chao Liang ◽  
Ruixing Zhu ◽  
...  
2013 ◽  
Vol 15 (6) ◽  
pp. 1665 ◽  
Author(s):  
Fang Zhang ◽  
Xushi Yang ◽  
Lei Jiang ◽  
Chao Liang ◽  
Ruixing Zhu ◽  
...  

2012 ◽  
Vol 3 (2) ◽  
pp. 476-484 ◽  
Author(s):  
Fang Zhang ◽  
Xushi Yang ◽  
Fengxia Zhu ◽  
Jianlin Huang ◽  
Wenhan He ◽  
...  

Author(s):  
Yuan Zhang ◽  
Ying Guo ◽  
Wei David Wang ◽  
Shengyu Li ◽  
Yin Zhu ◽  
...  

Author(s):  
Alex L. Bagdasarian ◽  
Stasik Popov ◽  
Benjamin Wigman ◽  
Wenjing Wei ◽  
woojin lee ◽  
...  

Herein we report the 3,5bistrifluoromethylphenyl urea-catalyzed functionalization of unactivated C–H bonds. In this system, the urea catalyst mediates the formation of high-energy vinyl carbocations that undergo facile C–H insertion and Friedel–Crafts reactions. We introduce a new paradigm for these privileged scaffolds where the combination of hydrogen bonding motifs and strong bases affords highly active Lewis acid catalysts capable of ionizing strong C–O bonds. Despite the highly Lewis acidic nature of these catalysts that enables triflate abstraction from sp<sup>2</sup> carbons, these newly found reaction conditions allow for the formation of heterocycles and tolerate highly Lewis basic heteroaromatic substrates. This strategy showcases the potential utility of dicoordinated vinyl carbocations in organic synthesis.<br>


2020 ◽  
Author(s):  
Alex L. Bagdasarian ◽  
Stasik Popov ◽  
Benjamin Wigman ◽  
Wenjing Wei ◽  
woojin lee ◽  
...  

Herein we report the 3,5bistrifluoromethylphenyl urea-catalyzed functionalization of unactivated C–H bonds. In this system, the urea catalyst mediates the formation of high-energy vinyl carbocations that undergo facile C–H insertion and Friedel–Crafts reactions. We introduce a new paradigm for these privileged scaffolds where the combination of hydrogen bonding motifs and strong bases affords highly active Lewis acid catalysts capable of ionizing strong C–O bonds. Despite the highly Lewis acidic nature of these catalysts that enables triflate abstraction from sp<sup>2</sup> carbons, these newly found reaction conditions allow for the formation of heterocycles and tolerate highly Lewis basic heteroaromatic substrates. This strategy showcases the potential utility of dicoordinated vinyl carbocations in organic synthesis.<br>


2002 ◽  
Vol 124 (6) ◽  
pp. 888-889 ◽  
Author(s):  
Feng-Shou Xiao ◽  
Yu Han ◽  
Yi Yu ◽  
Xiangju Meng ◽  
Miao Yang ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document