Iron-Catalyzed Reductive Ethylation of Imines with Ethanol
作者:Marie Vayer、Sara P. Morcillo、Jennifer Dupont、Vincent Gandon、Christophe Bour
DOI:10.1002/anie.201800328
日期:2018.3.12
complex as precatalyst. This approach opens new perspectives in this area as it enables the synthesis of unsymmetric tertiary amines from readily available substrates and ethanol as a C2 building block. A variety of imines bearing electron‐rich aryl or alkyl groups at the nitrogen atom could be efficiently reductively alkylated without the need for molecular hydrogen. The mechanism of this reaction, which
Ruthenium-catalyzed double-fold C–H tertiary alkoxycarbonylation of arenes using di-tert-butyl dicarbonate
作者:Xiaohu Hong、Hao Wang、Bingxin Liu、Bin Xu
DOI:10.1039/c4cc05173d
日期:——
An efficient ruthenium-catalyzed double-fold C–H bond alkoxycarbonylation of arenes was developed using commercially available Boc2O as the tertiary esterification reagent.
Rhodium-Catalyzed Synthesis of Imines and Esters from Benzyl Alcohols and Nitroarenes: Change in Catalyst Reactivity Depending on the Presence or Absence of the Phosphine Ligand
作者:Taemoon Song、Ji Eun Park、Young Keun Chung
DOI:10.1021/acs.joc.8b00197
日期:2018.4.6
catalyzes the reductive N-alkylation of aryl nitro compounds with alcohols by a borrowing-hydrogen strategy to afford the corresponding imine products in good to excellent yields. In the absence of xantphos, the [Rh(COD)Cl]2/Cs2CO3 catalytic system behaves as an effective catalyst for the dehydrogenative coupling of alcohols to esters, with nitrobenzene as a hydrogen acceptor. The reactivity of the
[Rh(COD)Cl] 2 / xantphos / Cs 2 CO 3系统通过借位氢策略有效催化芳基硝基化合物与醇的还原性N-烷基化,从而以良好或优异的收率提供相应的亚胺产品。在不存在黄药的情况下,[Rh(COD)Cl] 2 / Cs 2 CO 3催化体系可作为醇与酯脱氢偶联的有效催化剂,硝基苯为氢受体。铑催化体系的反应性可以很容易地控制以选择性地提供亚胺或酯。
Synthesis and biological evaluation of new fluconazole β-lactam conjugates linked via 1,2,3-triazole
作者:Jaisingh M. Divse、Santosh B. Mhaske、Chaitanya R. Charolkar、Duhita G. Sant、Santosh G. Tupe、Mukund V. Deshpande、Vijay M. Khedkar、Laxman U. Nawale、Dhiman Sarkar、Vandana S. Pore
DOI:10.1039/c6nj03117j
日期:——
μg mL−1. Compounds 12h, 12j and 12k showed promising antifungal activity against all the tested fungal pathogens except C. neoformans ATCC 34554 compared to fluconazole. Compound 12j in which the β-lactam ring was formed using para-anisidine and benzaldehyde was found to be more potent than fluconazole against all the fungal strains with an IC50 value of <0.015 μg mL−1 for Candida albicans (ATCC 24433)
Benzylideneaniline derivatives and their radioisotope labeled compounds for binding and imaging of beta-amyloid plaques
申请人:Jeong Jae Min
公开号:US20070122341A1
公开(公告)日:2007-05-31
Benzylideneaniline derivatives of formula 1
wherein R1-R5 are independently selected from hydrogen, C
1
-C
4
alkyl and F (at least one of them is F) and each R
6
-R
10
are independently selected from hydrogen, C
1
-C
4
alkyl, OH, OCH
3
, NH
2
, NHCH
3
and N(CH
3
)
2
(at least one of them is OH, OCH
3
, NH
2
, NHCH
3
or N(CH
3
)
2
) are disclosed. Benzylideneaniline derivatives according to the present invention have high affinity to β-amyloid plaques. Thus, they can cross the blood-brain-barrier (BBB) and bind to β-amyloid plaques after administration into the body, making them useful for treatment, prevention, or imaging of Alzheimer's disease.