Synthesis of tertiary amines by direct Brønsted acid catalyzed reductive amination
作者:Mohanad A. Hussein、An H. Dinh、Vien T. Huynh、Thanh Vinh Nguyen
DOI:10.1039/d0cc02955f
日期:——
reductive amination reaction of carbonyl compounds. Despite developments of numerous new reductive amination methods in the past few decades, this reaction generally requires non-atom-economic processes with harsh conditions and toxic transition-metal catalysts. Herein, we report simple yet practical protocols using triflic acid as a catalyst to efficiently promote the direct reductive amination reactions
Demonstration of In Vitro Resurrection of Aged Acetylcholinesterase after Exposure to Organophosphorus Chemical Nerve Agents
作者:Qinggeng Zhuang、Andrew J. Franjesevic、Thomas S. Corrigan、William H. Coldren、Rachel Dicken、Sydney Sillart、Ashley DeYong、Nathan Yoshino、Justin Smith、Stephanie Fabry、Keegan Fitzpatrick、Travis G. Blanton、Jojo Joseph、Ryan J. Yoder、Craig A. McElroy、Özlem Doğan Ekici、Christopher S. Callam、Christopher M. Hadad
DOI:10.1021/acs.jmedchem.7b01620
日期:2018.8.23
reactivators of OP-inhibited AChE are no longer effective. Realkylation of aged AChE may provide a route to reversing aging. We designed and synthesized a library of quinonemethideprecursors (QMPs) as proposed realkylators of aged AChE. Our lead compound (C8) from an in vitro screen successfully resurrected 32.7 and 20.4% of the activity of methylphosphonate-aged and isopropyl phosphate-aged electric-eel AChE
PLANT GROWTH-PROMOTION AGENT AND METHOD FOR PROMOTING PLANT GROWTH
申请人:RIKEN
公开号:US20170305886A1
公开(公告)日:2017-10-26
The present invention concerns: a plant growth-promoting agent comprising a compound represented by Formula (I) or a salt thereof:
wherein Ar
1
represents a substituted or unsubstituted phenyl group, NZ represents a nitrogen-containing heterocyclic ring group or an acyclic nitrogen-containing group having a partial structure of the nitrogen-containing heterocyclic ring group, n is 0, 1, or 2, R
1
and R
2
each represent a hydrogen atom, a substituted or unsubstituted C
1-3
-alkyl group, a cyano group, or a carboxyl group, R
1
and R
2
may together form an oxo group, and when n is 2, R
1
or R
2
may be the same or different; and a method for promoting plant growth using the plant growth-promoting agent.
Ruthenium and Iron‐Catalysed Decarboxylative
<i>N</i>
‐alkylation of Cyclic α‐Amino Acids with Alcohols: Sustainable Routes to Pyrrolidine and Piperidine Derivatives
A modular and waste‐free strategy for constructing N‐substituted cyclic amines via decarboxylative N‐alkylation of α‐amino acids employing ruthenium‐ and iron‐based catalysts is presented. The reported method allows the synthesis of a wide range of five‐ and six‐membered N‐alkylated heterocycles in moderate‐to‐excellent yields starting from predominantly proline and a broad range of benzyl alcohols
Plant growth-promotion agent and method for promoting plant growth
申请人:RIKEN
公开号:US10435394B2
公开(公告)日:2019-10-08
The present invention concerns: a plant growth-promoting agent comprising a compound represented by Formula (I) or a salt thereof:
wherein Ar1 represents a substituted or unsubstituted phenyl group, NZ represents a nitrogen-containing heterocyclic ring group or an acyclic nitrogen-containing group having a partial structure of the nitrogen-containing heterocyclic ring group, n is 0, 1, or 2, R1 and R2 each represent a hydrogen atom, a substituted or unsubstituted C1-3-alkyl group, a cyano group, or a carboxyl group, R1 and R2 may together form an oxo group, and when n is 2, R1 or R2 may be the same or different; and a method for promoting plant growth using the plant growth-promoting agent.