174833-49-9

Upstream product

• 33178-30-2 2,6-diacetylaniline 
• 151603-30-4 2-bromobenzene-1,3-dicarboxylic acid dichloride 
• 108-59-8 malonic acid dimethyl ester 
• 917-54-4 methyllithium 
• 576-22-7 2-Bromo-m-xylene 
• 186581-53-3 diazomethane 
• 22433-91-6 2-bromoisophthalic acid 
• 1026263-75-1 3-[3-(2,2-Bis-methoxycarbonyl-acetyl)-2-bromo-phenyl]-2-methoxycarbonyl-3-oxo-propionic acid methyl ester 

Downstream Products

• 1292781-17-9 2,6-bis(2-methyloxazol-4-yl)bromobenzene 
• 1292781-18-0 2-(2-methylthiazole-4-yl)-6-(2-methyloxazole-4-yl)bromobenzene 
• 1292781-21-5 C₁₂H₉Br₂NO₂ 
• 193812-91-8 1-bromo-2,6-bis(2-bromoacetyl)benzene 
• 174954-70-2 1,2-bis(2,6-bis((S)-1-ethoxyethyl)phenyl)diselane 
• 174833-48-8 2-Bromo-1,3-bis-((S)-1-ethoxy-ethyl)-benzene 
• 149832-33-7 bis<2,6-bis(1-(R)-ethoxyethyl)phenyl> diselenide 
• 149832-39-3 2,6-bis(1-(R)-ethoxyethyl)bromobenzene 
• 174833-46-6 (R)-1-[2-Bromo-3-((R)-1-hydroxy-ethyl)-phenyl]-ethanol 
• 174833-47-7 (S)-1-[2-Bromo-3-((S)-1-hydroxy-ethyl)-phenyl]-ethanol 

Relevant academic research and scientific papers

Catalytic Activation of N2O at a Low-Valent Bismuth Redox Platform

Herein we present the catalytic activation of N2O at a BiI→BiIII redox platform. The activation of such a kinetically inert molecule was achieved by the use of bismuthinidene catalysts, aided by HBpin as reducing agent. The protocol features remarkably mild conditions (25 °C, 1 bar N2O), together with high turnover numbers (TON, up to 6700) and turnover frequencies (TOF). Analysis of the elementary steps enabled structural characterization of catalytically relevant intermediates after O-insertion, namely a rare arylbismuth oxo dimer and a unique monomeric arylbismuth hydroxide. This protocol represents a distinctive example of a main-group redox cycling for the catalytic activation of N2O.

A Masked Phosphinidene Trapped in a Fluxional NCN Pincer

The trapping of a phosphinidene (R-P) in an NCN pincer is presented. Stabilized phosphinidene 1 was characterized by31P{1H},1H, and13C{1H} NMR spectroscopy, exhibiting an averaged C2vsymmet

Novel bis(azole) pincer palladium complexes: Synthesis, structures and applications in Mizoroki-Heck reactions

Two novel NCN-pincer complex precursors bearing frameworks of 2,6-bis(oxazol-4-yl)benzene (A) and 2-(thiazol-4-yl)-6-(oxazol-4-yl)benzene (B) were synthesized. Palladations of A and B afforded two new bis(azole) pincer complexes, [(A-κ3NCN)PdBr] (1) and [(B-κ3NCN) PdBr] (2). Both complexes were fully characterized by NMR, MS, DSC-TGA and single-crystal X-ray diffraction analysis. Complex 1 crystallizes in a noncentrosymmetric orthorhombic space group Cmc21 (No. 36, Z = 4). Complex 2 crystallizes in a centrosymmetric monoclinic space group P2 1/n (No. 14, Z = 4). Despite the similarity in their chemical formulas, the structures of the two complexes are subtly different: they are built up of two-dimensional supramolecular layers with identical topology, but stacked in different sequences, i.e., the layers in complex 1 are stacked in an AAAA-type fashion, while those in complex 2 are stacked in an alternating AA-1AA-1 sequence (A denotes a layer; A-1 stands for A's inversion symmetry equivalent). In addition, the complexes showed good catalytic activity toward Mizoroki-Heck reactions. The Royal Society of Chemistry 2011.

AN IMPROVED PROCEDURE FOR THE PREPARATION OF 2-HALO-1,3- AND -1,4-DIETHYNYLBENZENES AND THEIR OXIDATIVE POLYMERIZATION. SYNTHESIS AND CHARACTERIZATION OF THE CORRESPONDING POLYMERS VIA OXIDATIVE POLYMERIZATION

The paper describes a rapid and convenient route for the preparation of 2-halo-1,3- and -1,4-diethynylbenzenes (halogen = Cl, Br, I) starting from 2-nitro-1,3- and -1,4-diacetylbenzenes.The compounds are sensitive to light and decompose easily.Their preparation opens the way to the synthesis of widely substituted poly-(diethynylbenzene)-type polymers.Some were prepared and characterized for their stability and electrical properties, and the influence of halo-substituents examined.