Heterocycles with Sulphur (S)

4-Bromo-2-methylthiophene is a linker that is used in the synthesis of metal carbonyls. It has been shown to be an efficient cross-linking agent for the preparation of polymers. 4-Bromo-2-methylthiophene can be isomerized to 2,5-dimethylthiophene by heating it with hydroxylamine. 4-Bromo-2-methylthiophene can also catalyze the alkylation of nucleophiles such as ammonia and dimethyl sulfate, as well as nucleophilic attack on carboxylic acid derivatives. This compound is acidic, due to its chloride substituent, which can react with basic groups such as hydroxyl groups or amines.

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2-Amino-5-chlorothiophenol is an aminothiophene derivative that has been shown to be an effective antibacterial agent. It is a substrate in the synthesis of polyesters and is used as a precursor in the synthesis of ciprofloxacin, a broad spectrum antibiotic. 2-Amino-5-chlorothiophenol has been shown to catalyze the reaction between phenyl groups and heterocycles, which is an important step in the synthesis of ciprofloxacin and fluconazole. The optimal reaction temperature for this process is between 150°C - 180°C. The irradiation time for this process varies depending on the intensity of light used, with optimal results obtained after 10 minutes at 25 kGy.

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2-[(Trimethylsilyl)ethynyl]thiophene is a luminescent molecule that can be used as an acceptor. It has been shown to undergo reactions with β-unsaturated aldehydes, such as acrolein and crotonaldehyde. The product of these reactions is a dicarbonyl compound. 2-[(Trimethylsilyl)ethynyl]thiophene has a structured ligand and can be used in copper chloride mediated reactions with other molecules. This molecule also has photophysical properties that are dependent on the type of solvent and the presence of chloride ions. 2-[(Trimethylsilyl)ethynyl]thiophene's diffraction pattern has been studied using X-ray crystallography, which provides detailed information about its molecular structure.

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3-(Chloromethyl)thiophene is a nitrous acid anhydride that is used in organic synthesis. It can be synthesized by reacting thiophene with chloromethane, which is a chlorine-containing compound. This reaction forms the product 3-(chloromethyl)thiophene and hydrogen chloride gas. The kinetic and nucleophilic nature of 3-(chloromethyl)thiophene has been analyzed using isotope effects on its reactivity. Deuterium isotopes have been used to study the effect of halides on the reactivity of 3-(chloromethyl)thiophene, which was found to be less reactive towards chloride than other halides. 3-(Chloromethyl)thiophene also reacts with ligands such as ammonia or amines to form different products.

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6-Chlorobenzo[b]thiophene is a hydrogen bond acceptor that has been shown to have anti-inflammatory, anticoagulant, and antipsychotic properties. The drug binds to the serotonin receptor in the central nervous system and can be used as an antidepressant. It also has affinity for chloride channels and may be used as an analgesic or neuroleptic. 6-Chlorobenzo[b]thiophene is structurally related to piperidine and piperazine and has been shown to have pharmacophore activity with x-ray crystal structures of two compounds: 6-chloro-N1-[(3,4-dichlorophenyl)methyl]-N2-(piperidin-2-ylmethyl)benzothiophene (6CBTMP) and 6-chloro-N1-[(3,4-dimethoxyphenyl)methyl]-N2-(piperid

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