Practical direct synthesis of N-aryl-substituted azacycles from N-alkyl protected arylamines using TiCl4 and DBU

2020 ◽  
Vol 18 (26) ◽  
pp. 5008-5016
Author(s):  
Van Hieu Tran ◽  
Minh Thanh La ◽  
Soosung Kang ◽  
Hee-Kwon Kim
Keyword(s):  
Direct Synthesis ◽  
Highly Efficient

Highly efficient direct transformations from N-alkyl protected arylamines such as N-methyl-, N-ethyl-, N-isopropyl, and N-tert-butyl arylamines into N-aryl substituted azacycles in the presence of TiCl4 and DBU have been developed.

An asymmetric acetate-Mannich reaction of chiral isatin derived ketimines and its applications

2017 ◽  
Vol 15 (43) ◽  
pp. 9217-9225 ◽  
Author(s):  
Saumen Hajra ◽  
Suhas Shivajirao Bhosale ◽  
Atanu Hazra
Keyword(s):  
Amino Acid ◽  
Mannich Reaction ◽  
Direct Synthesis ◽  
Highly Efficient ◽  
Excellent Selectivity

A highly efficient TMSOTf-mediated asymmetric acetate-Mannich reaction of chiral isatin derived ketimines and S-phenyl thioacetate was developed to afford the direct synthesis of indole-based β3,3-amino acid thioester with excellent selectivity (dr > 98 : 2). Syntheses of (+)-AG-041R and 3-aminopyrroloindoline have been accomplished utilizing the method.

ChemInform Abstract: An Organocatalytic Highly Efficient Approach to the Direct Synthesis of Substituted Carbazoles in Water.

ChemInform ◽  
2014 ◽  
Vol 45 (14) ◽  
pp. no-no
Author(s):  
Pradeep Kumar Jaiswal ◽  
Soumen Biswas ◽  
Shivendra Singh ◽  
Sampak Samanta
Keyword(s):  
Direct Synthesis ◽  
Efficient Approach ◽  
Highly Efficient

Direct synthesis of various polar functionalized polypropylene materials with tunable molecular weights and high incorporation ratios

2021 ◽  
Vol 12 (38) ◽  
pp. 5495-5504
Author(s):  
Zhou Lu ◽  
Hui Wang ◽  
Shuaikang Li ◽  
Shengyu Dai
Keyword(s):  
Direct Synthesis ◽  
Molecular Weights ◽  
Highly Efficient ◽  
High Incorporation

As compared with the classical α-diimine catalyst, iminopyridyl catalysts were observed to be highly efficient for the direct synthesis of polar functionalized polypropylene with tunable molecular weights and high incorporation ratios.

Direct synthesis of bifunctional nanorods from a Co–adenine–MoO3 hybrid for overall water splitting

2020 ◽  
Vol 4 (2) ◽  
pp. 546-554 ◽  
Author(s):  
Anning Jiang ◽  
Wei Zhang ◽  
Zegao Wang ◽  
Naga Pradeep Nidamanuri ◽  
Qiang Li ◽  
...  
Keyword(s):  
Water Splitting ◽  
Direct Synthesis ◽  
Core Shell ◽  
Highly Efficient ◽  
Overall Water Splitting ◽  
Bifunctional Electrocatalysts ◽  
One Step

Well-defined core–shell Co-Mo2C@NGCS nanorods are designed and synthesized through one-step pyrolysis of a Co–adenine–MoO3 hybrid and are used as highly efficient bifunctional electrocatalysts for overall water splitting.

Direct Synthesis of Ultrasmall Ruthenium Nanoparticles on Porous Supports Using Natural Sources for Highly Efficient and Selective Furfural Hydrogenation

ChemCatChem ◽  
2017 ◽  
Vol 9 (13) ◽  
pp. 2448-2452 ◽  
Author(s):  
Zhanrong Zhang ◽  
Jinliang Song ◽  
Zhiwei Jiang ◽  
Qinglei Meng ◽  
Pei Zhang ◽  
...  
Keyword(s):  
Direct Synthesis ◽  
Ruthenium Nanoparticles ◽  
Natural Sources ◽  
Highly Efficient ◽  
Furfural Hydrogenation ◽  
Porous Supports
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