33515-58-1 Usage
General Description
4-Chloro-1H-pyrrole-2-carbaldehyde is a chemical compound with the molecular formula C^6H^5ClNO. It is a pale yellow liquid with a pungent odor, and it is primarily used as an intermediate in the synthesis of pharmaceuticals and agrochemicals. It is also employed as a building block in organic synthesis, particularly in the preparation of heterocyclic compounds. 4-Chloro-1H-pyrrole-2-carbaldehyde is a versatile compound that has a variety of applications in the fields of chemistry and industry, making it an important and valuable chemical compound.
Check Digit Verification of cas no
The CAS Registry Mumber 33515-58-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,5,1 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 33515-58:
(7*3)+(6*3)+(5*5)+(4*1)+(3*5)+(2*5)+(1*8)=101
101 % 10 = 1
So 33515-58-1 is a valid CAS Registry Number.
33515-58-1Relevant articles and documents
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Sonnet
, p. 925,926,928 (1972)
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Pyrrole chemistry. XXII. A "one-pot" synthesis of some 4-acylpyrrole-2-carboxaldehydes from pyrrole
Anderson, Hugh J.,Loader, Charles E.,Foster, Aidan
, p. 2527 - 2530 (2007/10/02)
The Vilsmeier-Haack intermediates formed from pyrrole and from 1-methylpyrrole may be acylated under normal Friedel-Crafts conditions.Hydrolytic work-up then gives 4-acylpyrrole-2-carboxaldehydes in good yield.The methoxide/methanol treatment of the 4-trichloroacetylated intermediate leads to methyl 2-formylpyrrole-4-carboxylate.These are all "one-pot" syntheses from pyrrole.The formyl group has been removed from several of the products thus affording some 3-acylpyrroles in two operations.
