112681-06-8

Upstream product

• 603-32-7 triphenyl-arsane 
• 17201-43-3 4-cyanobenzyl bromide 

Downstream Products

• 136827-57-1 4-[(E)-2-(4-hydroxyphenyl)ethenyl]benzonitrile 
• 1009342-37-3 4-{2-[4-(6-oxo-hexyloxy)-phenyl]-vinyl}-benzonitrile 
• 1009342-39-5 4-{2-[4-(7-oxo-heptyloxy)-phenyl]-vinyl}-benzonitrile 
• 1009342-36-2 4-{2-[4-(6-hydroxy-hexyloxy)-phenyl]-vinyl}-benzonitrile 
• 724464-65-7 4-{2-[4-(7-hydroxy-heptyloxy)-phenyl]-vinyl}-benzonitrile 
• 1009342-40-8 4-{2E-[4-(9-oxononyloxy)phenyl]vinyl}benzonitrile 
• 724464-66-8 4-{2-[4-(9-hydroxy-nonyloxy)-phenyl]-vinyl}-benzonitrile 
• 1009342-41-9 4-{2-[4-(11-oxo-undecyloxy)-phenyl]-vinyl}-benzonitrile 
• 724464-67-9 4-{2-[4-(11-hydroxy-undecyloxy)-phenyl]-vinyl}-benzonitrile 
• 1009342-47-5 4-[2-(4-tetradeca-11,13-dienyloxy-phenyl)-vinyl]-benzonitrile 

Relevant academic research and scientific papers

New liquid crystalline stilbene derivatives containing 1,2-dienylalkoxy chains

New liquid crystalline stilbene derivatives containing 1,2-dienylalkoxy chains 1 (n=7, 9, 11) have been synthesized and their mesomorphic properties have been measured by polarizing optical microscopy, differential scanning calorimetry, and absorption spectroscopy. The effect of terminal alkoxy chain length and polimerisable function on the mesomorphic behaviour is discussed.

Equilibrium acidities and homolytic bond dissociation enthalpies of the acidic C-H bonds in as-substituted triphenylarsonium and related cations

Equilibrium acidities (P.KHAS) of As-fluorenyltriphenylarsonium, As-phenacyltriphenylarsonium, six As-(panz-substituted benzyDtriphenylarsonium [p-GC6H4CH2+AsPh3] (G = H, Me, CF3, CO2Me, CN, and N02), and six P-(para-substituted benzyl)tri(ra-butyl)phosphonium [p-GC6H4CH2+P(w-Bu)3] (G = H, Me, CF3, CO2Me, CN, and NO2) bromide salts, together with the oxidation potentials [SOX(A-)] of their conjugate bases (ylides) have been determined in dimethyl sulfoxide (DMSO) solution. Introduction of an a-triphenylarsonium (a-PhsAs+) group was found to increase the adjacent C-H bond acidities by 13-20 pK units (18-27 kcal/mol). The equilibrium acidities for the two series p-GC6H4CH2+AsPh3 andp-GC6H4CH2+P(n-Bu)3 cations were found to be nicely correlated with the Hammett er constants of the correspondingpara-substituents (G) (Figures 1 and 2). The homolytic bond dissociation enthalpies (BDEs) of the acidic C-H bonds determined by using eq 1 reveal that an a-PhsAs"1" group increases the BDE value of the adjacent acidic C-H bond by 2-5 kcal/mol, whereas the substituent effects for an a-Ph3P+ or a-(w-Bu)3Pf group was found to be dependent on the nature of the substituents attached to the a-carbon atom. Good linear correlations were obtained for the equilibrium acidities of As-(para-substituted benzyDtriphenylarsonium and P-(parasubstituted benzyl)tri(?-butyl)phosphonium cations with the oxidation potentials of their conjugate bases (ylides) as shown in Figures 3 and 4, respectively.

Photochemistry of Some Group V Onium Salts. Effect of Magnetic Nuclei on In-Cage Radical Coupling Reactions

A series of group V arylammonium, arylphosphonium, and arylarsonium salts have been synthesized and their photochemical behaviour investigated.Direct irradiation of the onium salts in acetonitrile provided photoproducts that were dependent on the magnitude of the nuclear hyperfine coupling constant of the heteroatom rather than spin-orbit coupling.The ammonium and phosphonium salts provided only out-of-cage coupling products while the arsonium salt provided both in-cage and out-of-cage coupling products.