91306-73-9

Upstream product

• 13679-74-8 2-Acetyl-5-methylthiophen 
• 100-52-7 benzaldehyde 
• 105398-49-0 3-dimethylamino-1-(5-methyl-2-thienyl)-propanone 

Downstream Products

• 91307-09-4 1-(4-Chloro-phenyl)-2-(5-methyl-thiophen-2-yl)-5-phenyl-1H-pyrrole 
• 91307-08-3 2-(5-Methyl-thiophen-2-yl)-1,5-diphenyl-1H-pyrrole 

Relevant academic research and scientific papers

Photoactive bithienyl pesticides

Bithienyl compounds of the following structural formula are phototoxic insecticides and acaricides: STR1 wherein R1 is selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, haloalkenoxy, phenyl, phenoxy, nitro, alkylsulfinyl, alkylsulfonyl, and alkylthio provided R4 is other than hydrogen; R2 is selected from hydrogen and halogen, or R1 and R2 at adjacent positions are joined to form C4 H4 ; R3 is selected from hydrogen, alkyl, thienyl, and phenyl optionally substituted with alkyl, alkoxy, or 1-2 halogen; and R4 is selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfinyl, haloalkenylthio, formyl, alkylcarbonyl, alkoxycarbonyl, phenylcarbonyl, dialkylphosphono, and nitro.

Photoactive bithienyl pesticides

Bithienyl compounds of the following structural formula are phototoxic insecticides and acaricides: STR1 wherein R1 is selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, and haloalkoxy; R2 is selected from hydrogen and halogen; R3 is selected from hydrogen, alkyl, phenyl, and thienyl; and R4 is selected from hydrogen, halogen, alkyl, and haloalkyl.

SYNTHESIS OF UNSYMMETRICAL 1,4-DIKETONES VIA THE MICHAEL-STETTER REACTION

The cyanide catalyzed 1,4-Michael addition of aldehydes to α,β-unsaturated ketones has been examined with regard to substituent effects.Adjustment of the donor/acceptor relationship aloows for the synthesis of multisubstituted diaryl 1,4-diketones.