38633-49-7

Upstream product

• 83-38-5 2,6-dichlorobenzaldehyde 
• 69052-20-6 E-cinnamyltriphenylphosphonium chloride 
• 137524-73-3 1,3-Dichloro-2-[(E)-2-(2-phenyl-ethanesulfonyl)-vinyl]-benzene 
• 1530-35-4 cinnamyltriphenylphosphonium chloride 

Downstream Products

• 90281-02-0 threo-t-3-phenyl-t-3'-(2,6-dichlorophenyl)-bi(1,'1'-dichlorocycloprop-2-yl) 
• 90281-00-8 1,1-dichloro-t-2-<((E)-2'-(2,6-dichlorophenyl)-ethen-1'-yl)>-r-3-phenylcyclopropane 
• 38633-50-0 C₃₂H₂₄Cl₄ 
• 90281-04-2 t-2R*-(1',1'-dichloro-t-3'-phenylcycloprop-r-2'R*-yl)-r-3-(2,6-dichlorophenyl)oxirane 
• 90281-03-1 erythro-t-3-phenyl-t-3'-(2,6-dichlorophenyl)-2,2'-bi-oxiranyl 
• 90281-03-1 threo-t-3-phenyl-c-3'-(2,6-dichlorophenyl)-2,2'-bioxiranyl 
• 89970-53-6 R*S*-3,4-dichloro-(E)-1-phenyl-4-(2,6-dichlorophenyl)-1-butene 
• 89970-54-7 R*,R*S*,S*-1,2,3,4-tetrachloro-1-phenyl-4-(2,6-dichlorophenyl)-1-butane 
• 90281-01-9 t-2-<(E)-2'-(2,6-dichlorophenyl)-ethen-1'-yl>-r-3-phenylcyclopropane 

Relevant academic research and scientific papers

A novel and convenient synthesis of E,E-bis(styryl)sulfones and E,E-1,4-diaryl-1,3-butadienes

The condensation of 2-phenylethanesulfonylacetic acid (4) with araldehydes (5) in presence of a base gave E-styryl-2-phenylethyl sulfones (6) which on dehydrogenation with DDQ (7) yielded E,E-bis-(styryl)sulfones (8). The 8 on treatment with dichlorotris(triphenyl-phosphine)ruthehium(II) catalyst resulted 1,4-diaryl-1,3-butadienes (9). The configurations of 6, 8 and 9 have been determined based on IR and 1H NMR spectral data.

STEREOCHEMISTRY OF BIS-(DICHLOROCYCLOPROPANATION) AND -(EPOXIDATION) OF 1,4-DIARYLBUTADIENES

Dichlorocyclopropanation as well as epoxidation of the 1,4-diarylbutadienes 1-4 to give the mon- and/or bis-adducts according to several methods were studied.Dichlorocyclopropanation is more affected than epoxidation by sterical hindrance of large substituents as 2,6-dichlorophenyl.The bis-adducts are formed preferably as meso- (or threo-) isomers.