152940-73-3

Usage

Molecular Structure

The compound consists of a pyrrole ring with two chloromethyl groups and a sulfonyl group attached to it, as well as a 4-methylphenyl group attached to the sulfonyl group.

Chemical Classification

1H-Pyrrole, 3,4-bis(chloromethyl)-1-[(4-methylphenyl)sulfonyl]is classified as a chemical compound.

Usage

It is used in organic synthesis and can be employed in the production of various pharmaceuticals, agrochemicals, and other fine chemicals.

Safety

It is important to handle this chemical with care and follow appropriate safety procedures as it may have hazardous properties.

Upstream product

• 152940-71-1 diethyl 1-[(4-methylphenyl)sulfonyl]-1H-pyrrole-3,4-dicarboxylate 
• 41969-71-5 diethyl pyrrole-3,4-dicarboxylate 
• 152940-72-2 N-p-toluenesulfonylpyrrole-3,4-dimethanol 

Downstream Products

• 144442-90-0 9-(Toluene-4-sulfonyl)-1,4,5,8-tetrahydro-1,4-epiazano-naphthalene-2,3,6,7-tetracarboxylic acid tetramethyl ester 
• 144425-37-6 3,5-dihydro-5-(p-tolylsulfonyl)-1H-thieno<3,4-c>pyrrole 2,2-dioxide 
• 152940-68-6 6-(4-Bromo-benzenesulfonyl)-4,6-dihydro-1H-pyrrolo[3,4-d]pyridazine-2,3-dicarboxylic acid di-tert-butyl ester 
• 152940-70-0 6-(4-Bromo-benzenesulfonyl)-2,3,4,6-tetrahydro-1H-pyrrolo[3,4-d]pyridazine 
• 152940-69-7 6-(Toluene-4-sulfonyl)-2,3,4,6-tetrahydro-1H-pyrrolo[3,4-d]pyridazine 
• 152940-78-8 N-(p-toluenesulfonyl)pyrrolo diazene 
• 152940-67-5 6-(Toluene-4-sulfonyl)-4,6-dihydro-1H-pyrrolo[3,4-d]pyridazine-2,3-dicarboxylic acid di-tert-butyl ester 
• 174277-73-7 1,4-Dihydro-6-tosylpyrrolo<3,4-d>-3,2-oxathiine 2-oxide 

Relevant academic research and scientific papers

Tuning the singlet-triplet energy gap in a non-Kekule series by designed structural variation. The singlet states of N-substituted-3,4-dimethylenepyrrole biradicals

Semiempirical quantum chemical calculations (AM1/CI and PM3/CI) confirm the qualitative perturbational prediction that electron-withdrawing groups on the ring nitrogen of a 3,4-dimethylenepyrrole should diminish the energy separation of the singlet and triplet states to near zero. Syntheses of a series of precursors of such biradicals have been developed. Study of the chemistry and spectroscopy of the biradicals has revealed persistent singlet states for the cases where the substituent is methyl, isobutyryl, and pivaloyl. In the cases of N-arenesulfonyl-3,4-dimethylenepyrroles, both a singlet and a triplet form can be observed as persistent species. In this paper, the properties of the singlets in this series are described. Although energy transfer from the excited triplet state of the sensitizer xanthone to the diazene precursor of N-p-toluenesulfonyl-3,4-dimethylenepyrrole is observed by nanosecond time-resolved spectroscopy, the chemical behavior of the biradical intermediate is the same as that observed in the direct photolysis or thermolysis of the diazene. The reactive form of the biradical under these conditions appears to be the singlet.

PYRROLE DERIVATIVE AND PROCESS FOR PRODUCING THE SAME

An object of the present invention is to provide novel pyrrole derivatives and processes for producing the derivatives, and to provide novel pyrrole derivatives (intermediates) which may be used as a starting material for the pyrrole derivatives and proce