Efficient and Clean Gold-Catalyzed One-Pot Selective N-Alkylation of Amines with Alcohols
作者:Lin He、Xia-Bing Lou、Ji Ni、Yong-Mei Liu、Yong Cao、He-Yong He、Kang-Nian Fan
DOI:10.1002/chem.201001848
日期:2010.12.17
Atom‐efficient directN‐alkylation: An environmentally clean one‐pot selective N‐alkylation of amines with an equimolar amount of alcohols via a hydrogen autotransfer pathway was achieved over a titania‐supportedgoldcatalyst system in good to excellent yields without additive (see scheme).
Enantioselective organocatalytic reductive amination of aliphatic ketones by benzothiazoline as hydrogen donor
作者:Kodai Saito、Takahiko Akiyama
DOI:10.1039/c2cc31486j
日期:——
The chiral phosphoric acid-catalyzed enantioselectivereductiveamination of aliphatic ketones with aromatic amines was successfully achieved by the use of benzothiazoline as the hydrogen donor. Corresponding chiral aliphatic amines were obtained with excellent enantioselectivities.
Reductive Amination of Aldehydes and Ketones with Sodium Triacetoxyborohydride. Studies on Direct and Indirect Reductive Amination Procedures<sup>1</sup>
作者:Ahmed F. Abdel-Magid、Kenneth G. Carson、Bruce D. Harris、Cynthia A. Maryanoff、Rekha D. Shah
DOI:10.1021/jo960057x
日期:1996.1.1
triacetoxyborohydride is presented as a general reducing agent for the reductiveamination of aldehydes and ketones. Procedures for using this mild and selective reagent have been developed for a wide variety of substrates. The scope of the reaction includes aliphatic acyclic and cyclic ketones, aliphatic and aromatic aldehydes, and primary and secondary amines including a variety of weakly basic and
Hemilabile N-heterocyclic carbene (NHC)-nitrogen-phosphine mediated Ru (II)-catalyzed N-alkylation of aromatic amine with alcohol efficiently
作者:Xiao-Jun Yu、Hai-Yu He、Lei Yang、Hai-Yan Fu、Xue-Li Zheng、Hua Chen、Rui-Xiang Li
DOI:10.1016/j.catcom.2017.03.007
日期:2017.5
a novel N-heterocyclic carbene (NHC)-nitrogen-phosphine ligand (1) was synthesized, and the combination of it with [Ru(COD)Cl2]n showed the high activity and selectivity with a low Ru loading of 0.1% for the N-alkylation of amine with alcohol. Especially, for these substrates with pyridine backbone, even if the catalyst loading was as low as 0.01%, good yields (81–95%) of the desired products were
Catalyst-Free One-Pot Reductive Alkylation of Primary and Secondary Amines and N,N-Dimethylation of Amino Acids Using Sodium Borohydride in 2,2,2-Trifluoroethanol
for the reductive alkylation of primary and secondary amines and N,N-dimethylation of amino acids is described using sodium borohydride as a reducing agent in 2,2,2- trifluoroethanol without use of a catalyst or any other additive. The solvent can be readily recovered from reaction products in excellent purity for direct reuse. reductive amination - 2,2,2-trifluoroethanol - sodium borohydride - reductive