39532-56-4Relevant academic research and scientific papers
Using Catalysts to Make Catalysts: Titanium-Catalyzed Hydroamination to Access P,N-Ligands for Assembling Catalysts in One Pot
Hao, Han,Bagnol, Thibault,Pucheault, Mathieu,Schafer, Laurel L.
supporting information, p. 1974 - 1979 (2021/04/05)
Using a diamido-bis(amidate) titanium precatalyst, the hydroamination of alkynylphosphines afforded phosphinoenamine products. After reduction, 2-aminophosphines are prepared in excellent yield and on gram scale. A broad variety of alkynylphosphines and primary amines with different electronic and steric features are tolerated in this sequential transformation, enabling the rapid assembly of a collection of ligands. Additionally, intermediate phosphinoenamines can be used directly as proligands for coordination to transition metals using protonolysis or salt metathesis reactions. These transformations result in easy-to-use one pot protocols to prepare metal P,N-complexes for catalysis or small molecule activation.
Expeditious synthesis of Mosher amides using a solid supported carbodiimide
Adamczyk, Maciej,Fishpaugh, Jeffrey R.
, p. 7171 - 7172 (2007/10/03)
A novel method of Mosher amide synthesis using a solid supported carbodiimide in CDCl3 is described. Estimation of optical purity can be promptly achieved by direct NMR analysis of the reaction solvent.
Assignment of absolute stereochemistry to an insect pheromone by chiral amplification
Shi, Xiongwei,Leal, Walter S.,Meinwald, Jerrold
, p. 297 - 303 (2007/10/03)
Chiral amplification, a new strategy for determining the absolute configuration of difficultly available natural secondary alcohols or analogous amines, is described. Using this technique, the R configuration can be assigned to both components of the male
Chiral Polymethine Dyes, III. Synthesis and Spectroscopic Properties of an Unsymmetrical, Chiral Monomethine Cyanine Dye with Thiazolyl and Quinolinyl End Group
Reichardt, Christian,Budnik, Ulrich
, p. 927 - 930 (2007/10/02)
The synthesis of the unsymmetrical monomethine cyanine dye 6 in its monochiral (6a, b) and isochiral form (6c), first realized by Goetze in 1938, has been significantly improved and its spectroscopic properties have been studied.According to the synthetic
