28437-52-7

Upstream product

• 5835-98-3 1,1-bis(4-chlorophenyl)-2-propyn-1-ol 
• 74-88-4 methyl iodide 
• 90-98-2 4,4'-Dichlorobenzophenone 
• 77-78-1 dimethyl sulfate 

Downstream Products

• 28437-12-9 1-Methoxy-5,5-diphenyl-1,1-bis-(4-chlorphenyl)-pentin-⁽²⁾-ol-⁽⁴⁾ 
• 64434-53-3 1,1,4,4-tetrakis(4-chlorophenyl)buta-1,2,3-triene 
• 1626481-30-8 1,1,4,4-tetrakis(4-chlorophenyl)-4-methoxybut-2-yn-1-ol 
• 28437-16-3 1-Methoxy-5,5-diphenyl-1,1-bis-<4-chlor-phenyl>-pentin-(2)-on-(4) 

Relevant academic research and scientific papers

Synthesis, Characterization, and Reactivity of Cationic Gold Diarylallenylidene Complexes

Methoxide abstraction from gold acetylide complexes of the form (L)Au[η1-C≡CC(OMe)ArAr′] (L=IPr, P(tBu)2(ortho-biphenyl); Ar/Ar′=C6H4X where X=H, Cl, Me, OMe) with trimethylsilyl trifluoromethanesulfonate (TMSOTf) at ?78 °C resulted in the formation of the corresponding cationic gold diarylallenylidene complexes [(L)Au=C=C=CArAr′]+ OTf? in ≥85±5 % yield according to 1H NMR analysis. 13C NMR and IR spectroscopic analysis of these complexes established the arene-dependent delocalization of positive charge on both the C1 and C3 allenylidene carbon atoms. The diphenylallenylidene complex [(IPr)Au=C=C=CPh2]+ OTf? reacted with heteroatom nucleophiles at the allenylidene C1 and/or C3 carbon atom.

Synthesis of cyano-substituted diaryltetracenes from tetraaryl[3]cumulenes

A versatile, two-step synthesis of highly substituted, cyano-functionalized diaryltetracenes has been developed, starting from easily accessible tetraaryl[3]cumulenes. This unprecedented transformation is initiated by [2+2] cycloaddition of tetracyanoethy