Tungsten‐Catalyzed Direct
<i>N</i>
‐Alkylation of Anilines with Alcohols
作者:Xiao‐Bing Lan、Zongren Ye、Chenhui Yang、Weikang Li、Jiahao Liu、Ming Huang、Yan Liu、Zhuofeng Ke
DOI:10.1002/cssc.202002830
日期:2021.2.5
tungsten‐catalyzed N‐alkylation reaction of anilines with primary alcohols via BH/HA. This phosphine‐free W(phen)(CO)4 (phen=1,10‐phenthroline) system was demonstrated as a practical and easily accessible in‐situ catalysis for a broad range of amines and alcohols (up to 49 examples, including 16 previously undisclosed products). Notably, this tungsten system can tolerate numerous functional groups,
Microballs Containing Ni(0)Pd(0) Nanoparticles for Highly Selective Micellar Catalysis in Water
作者:Manisha Bihani、Pranjal P. Bora、Maarten Nachtegaal、Jacek B. Jasinski、Scott Plummer、Fabrice Gallou、Sachin Handa
DOI:10.1021/acscatal.9b02316
日期:2019.8.2
water, which poses a significant hindrance to their application in aqueous synthetic catalysis. To overcome these barriers, ligated Ni(0) nanoparticles (diameter <1 nm) containing a minimum amount of Pd(0) in the microballs formed of amphiphile PS-750-M are developed and applied in the highly selective carbamate cleavage. Selectivity and functional group tolerance are thoroughly investigated. Control
Chemical etching composition for the preparation of 3-d nanostructures
申请人:Forschungszentrum Karlsruhe GmbH
公开号:EP1918261A1
公开(公告)日:2008-05-07
The present invention is directed to the use of a chemical compound as an etchant for the removal of the unmodified areas of a chalcogenide-based glass, while leaving the image wise modified areas un-removed, whereby said compound contains a secondary amine, R1 R2 NH, with R1 and/or R2 having a sterically bulky group with more than 5 atoms.
Novel synthesis of N,N-diarylarylmethanamines from N-(arylmethylene)arenamines and (arylmethoxy)arenes
作者:Martino Paventi、Allan S. Hay
DOI:10.1021/jo00020a032
日期:1991.9
Various N,N-diarylarylmethanamines were synthesized by the reaction of N-(arylmethylene)arenamines with (arylmethoxy)arenes in dimethylformamide solution in the presence of a strong base as a catalyst which is obtained in situ by reacting metallic sodium with this solvent. In general, the reaction may be depicted as the reduction of the imine and addition, on the original imino nitrogen atom, of the aryl group (of the aryloxy moiety) of the ether and presumably oxidation of the arylmethoxy group of the either to its corresponding aldehyde. Side reactions and a proposed reaction mechanism are discussed.
Chemical etching composition for the preparation of 3-D nano-structures
申请人:Wong Sean
公开号:US20080128391A1
公开(公告)日:2008-06-05
A method of using a chemical compound as an etchant for the removal of unmodified areas of a chalcogenide-based glass, while leaving the imagewise modified areas un-removed, wherein the compound contains a secondary amine, R1 R2 NH, with R1 and/or R2 having a sterically bulky group with more than 5 atoms.