1795-05-7

Usage

Synthesis Reference(s)

Canadian Journal of Chemistry, 53, p. 209, 1975 DOI: 10.1139/v75-029Synthesis, p. 545, 1972 DOI: 10.1055/s-1972-21916

InChI:InChI=1/C7H10S/c1-5-4-6(2)8-7(5)3/h4H,1-3H3

Upstream product

• 5928-48-3 4,5-dimethylthiophene-2-carboxaldehyde 
• 26421-46-5 2,5-dimethyl-thiophene-3-carbaldehyde semicarbazone 
• 34485-85-3 2,3-dimethyl-2-propenyl-oxirane 
• 10504-04-8 2,3,5-trimethylfuran 
• 13679-70-4 5-methylthiophene-2-carboxaldehyde 
• 14503-51-6 tetramethylthiophene 
• 5834-16-2 3-methyl-2-thiophenecarboxaldehdye 
• 638-02-8 2,5-DIMETHYLTHIOPHENE 
• 632-16-6 2,3-dimethylthiophene 
• 53670-70-5 2-acetyl-3-methyl-4-oxopentanoic acid ethyl ester 
• 33688-06-1 Tetrahydro-3-methyl-2,5-thiophendion 
• 3141-26-2 3,4-dibromothiophene 
• 77-78-1 dimethyl sulfate 
• 4437-50-7 3-methyl-hexane-2,5-dione 

Downstream Products

• 63826-44-8 2,4,5-trimethyl-thiophene-3-carbaldehyde 
• 14503-51-6 tetramethylthiophene 
• 188290-36-0 thiophene 
• 638-02-8 2,5-DIMETHYLTHIOPHENE 
• 632-16-6 2,3-dimethylthiophene 
• 477706-43-7 [3,3,4,4,5,5-hexafluoro-1-(2-methyl-1-phenyl-1-propenyl)-2-(2,4,5-trimethyl-3-thienyl)]cyclopentene 
• 112440-49-0 3-(cyanomethyl)-2,4,5-trimethylthiophene 
• 60813-84-5 3-iodo-2,4,5-trimethylthiophene 
• 120159-39-9 5-Phenyl-3-(2,4,5-trimethyl-thiophen-3-yl)-4,5-dihydro-isoxazole 
• 112440-46-7 1,2-dicyano-1,2-bis(2,3,5-trimethyl-3-thienyl)ethene 
• 112440-47-8 1,2-bis(2,4,5-trimethylthiophene-3-yl)maleic anhydride 

Relevant academic research and scientific papers

Synthesis and structure of novel disulfide(trisulfide)-containing thiophenes

A novel trisulfide-containing thiophene, 1,5-dihydrothieno[3,4-e][1,2,3] trithiepine (5), and a disulfide analogue, 1,4-dihydrothieno[3,4-d][1,2]dithiine (4), were designed and synthesized. All the compounds were characterized by FT-IR, NMR, Raman, MS, an

INVESTIGATION OF THE MECHANISM OF THE RECYCLIZATION OF FURANS TO THIOPHENES AND SELENOPHENES UNDER ACID-CATALYSIS CONDITIONS. 3. INVESTIGATION OF THE RECYCLIZATION OF HOMOLOGS AND FUNCTIONAL DERIVATIVES OF FURAN. QUANTUM-CHEMICAL CALCULATIONS OF THE OBJECTS OF THE RECYCLIZATION

The kinetics of the conversion of di-, tri-, and tetraalkylfurans to the corresponding thiophenes were investigated.A correlation between the reactivities and structures of the investigated furans was established.Quantum-chemical calculations of the objects of the recyclization were made.The calculated and experimental data on the reactivities of the investigated compounds were compared.The most likely pathway of the protonation of furans in their recyclization was determined on the basis of calculations of the total energies of the protonated forms.

Equilibrium studies of thiophene exchange in (η-thiophene)Ru(η-C5H5)+: A model for thiophene adsorption on hydrodesulfurization catalysts

Equilibrium constants (K′) for the displacement of the π- (i.e., η5-) thiophene (T) ligand in CpRu(T)+ by methyl-substituted thiophenes (Th′), CpRu(T)+ + Th′ ? CpRu(Th′)+ + T, increase as the number of methyl groups in Th′ increases: T (1) 2T (35) 2T (50) 3T(200) 3T (300) 4T (1300). The K′ values increase by a factor of approximately 6 for each methyl in the thiophene (Th′). That thiophenes also adsorb to a Co-Mo/Al2O3 hydrodesulfurization (HDS) catalyst more strongly as the number of methyl groups in the thiophene increases suggests that they are also π-bonded to the catalyst surface. The results suggest that trends in rates of deuterium exchange and hydrodesulfurization on HDS catalysts for a series of methyl-substituted thiophenes are determined by their relative strengths of adsorption to the catalyst surface.

Polyene compounds

Novel 9-substituted or unsubstituted thienyl-3,7-dimethyl-nona-2,4,6,8-tetraene derivatives, useful as antitumor agents as well as processes for their preparation and novel intermediates are disclosed.