Highly chemoselective reductive amination-coupling by one-pot reaction of aldehydes, HMDS and NaBH4
摘要:
An efficient and highly chemoselective synthesis of symmetrical secondary amines via reductive amination of aldehydes with inexpensive and commercially available HMDS and sodium borohydride in high to quantitative yields is reported. (C) 2008 Elsevier Ltd. All rights reserved.
Adducts of Triallylborane with Ammonia and Aliphatic Amines as Stoichiometric Allylating Agents for Aminoallylation Reaction of Carbonyl Compounds
作者:Nikolai Yu. Kuznetsov、Rabdan M. Tikhov、Tatiana V. Strelkova、Yuri N. Bubnov
DOI:10.1021/acs.orglett.8b01317
日期:2018.6.15
Triallylborane–amines adducts are effective stoichiometric allylating agents in the aminoallylation reaction of carbonyl compounds in methanol. Moreover, copper-catalyzed diastereoselective allylation of Ellman’s imine was achieved with triallylborane–methylamine adduct.
Annulation of Diaryl(aryl)phosphenes and Cyclic Imines to Access Benzo-δ-phospholactams
作者:Yun Luo、Jiaxi Xu
DOI:10.1021/acs.orglett.0c02346
日期:2020.10.16
Microwave-assisted annulation of cyclicimine dibenzo[b,f][1,4]oxazepines and diaryl(aryl)phosphenes generated from diazo(aryl)methyl(diaryl)phosphine oxides through the Wolff rearrangement accesses pentacyclic benzo-δ-phospholactams, 4b,16-dihydrodibenzo[b,f]benzo[4,5][1,2]azaphosphinino[1,6-d][1,4]oxazepine 15-oxides, in good yields.
2,4,5-Tris(alkoxyaryl)imidazoline derivatives as potent scaffold for novel p53-MDM2 interaction inhibitors: Design, synthesis, and biological evaluation
作者:Daniil R. Bazanov、Nikolay V. Pervushin、Victoria Yu. Savitskaya、Lada V. Anikina、Marina V. Proskurnina、Natalia A. Lozinskaya、Gelina S. Kopeina
DOI:10.1016/j.bmcl.2019.06.007
日期:2019.8
Imidazoline-based small molecule inhibitors of p53-MDM2 interaction intended for the treatment of p53 wild-type tumors are the promising structures for design of anticancer drugs. Based on fragment approach we have investigated a key role of substituents in cis-imidazoline core for biological activity of nutlin family compounds. Although the necessity of the substituents in the phenyl rings of cis-imidazoline
Synthesis and Complexation Properties of <i>N</i>,<i>N</i>-Bis(phosphinomethyl)amine as a New Class of 1-Aminophosphinic Acids with Transition Metals and Lanthanide Ions in Aqueous Solution
ammonia and hypophosphorus acid gave novel C2-symmetric N,N-bis(phosphinomethyl)amines as a new class of 1-aminophosphinic acid compounds. Complexation properties of N,N-bis(phosphinomethyl)amines with transition metals such as Co2+, Ni2+, Zn2+, Cu2+, and Cd2+ and lanthanide ions La3+ and Gd3+ were studied in aqueous solution by the pH-potentiometric method. Dissociation constants (pK) of the compound were
bisphosphinic acids with HMDS followed by reaction with acidchlorides gives 1-hydroxy-1'-amino-1,1-bisphosphinic acid in good yields. The reaction gave a mixture of the racemate and meso form of 1-hydroxy-1'-amino-1,1-bisphosphinic acid. The stereochemistry of the readily separable diastereomer was confirmed after converting to the corresponding novel cyclic 1-hydroxy-1'-amino-1,1-bisphosphinic acid.