2139-03-9

Basic information

• Product Name: 3,4-dihydro-2H-pyrrole-5-carboxylic acid
• Synonyms: 3,4-dihydro-2H-pyrrole-5-carboxylic acid;1-pyrroline-2-carboxylic acid
• CAS NO: 2139-03-9
• Molecular Formula: C₅H₇NO₂
• Molecular Weight: 113.11
• Mol File: 2139-03-9.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 255.5°Cat760mmHg
• Flash Point: 108.3°C
• Appearance: /
• Density: 1.35g/cm³
• Vapor Pressure: 0.00498mmHg at 25°C
• Refractive Index: 1.58
• CAS DataBase Reference: 3,4-dihydro-2H-pyrrole-5-carboxylic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4-dihydro-2H-pyrrole-5-carboxylic acid(2139-03-9)
• EPA Substance Registry System: 3,4-dihydro-2H-pyrrole-5-carboxylic acid(2139-03-9)

Safety Data

• Hazardous Substances Data: 2139-03-9(Hazardous Substances Data)

Usage

Description

3,4-dihydro-2H-pyrrole-5-carboxylic acid is an organic compound derived from the formal oxidation of DL-proline. This process involves the loss of hydrogen from the nitrogen and from the carbon alpha to the carboxylic acid, resulting in the formation of a C=N bond. It is a heterocyclic compound with a unique structure that can be utilized in various applications due to its chemical properties.

Uses

Used in Pharmaceutical Industry:
3,4-dihydro-2H-pyrrole-5-carboxylic acid is used as an intermediate in the synthesis of various pharmaceutical compounds. Its unique structure allows it to be a key component in the development of new drugs, particularly those targeting specific biological pathways or receptors.
Used in Chemical Synthesis:
In the field of organic chemistry, 3,4-dihydro-2H-pyrrole-5-carboxylic acid serves as a valuable building block for the synthesis of a wide range of chemical compounds. Its reactivity and functional groups make it suitable for use in the creation of complex molecules with specific properties and applications.
Used in Material Science:
3,4-dihydro-2H-pyrrole-5-carboxylic acid can be utilized in the development of novel materials with unique properties. Its incorporation into polymers or other materials can lead to enhanced characteristics such as improved strength, flexibility, or chemical resistance, depending on the specific application.
Used in Research and Development:
Due to its unique structure and reactivity, 3,4-dihydro-2H-pyrrole-5-carboxylic acid is a valuable compound for research and development purposes. It can be used to study various chemical reactions, mechanisms, and properties, contributing to the advancement of scientific knowledge and the discovery of new applications.

InChI:InChI=1/C5H7NO2/c7-5(8)4-2-1-3-6-4/h1-3H2,(H,7,8)

Upstream product

• 52717-00-7 5-Aminocarbonylamino-2-oxopentansaeure 
• 66066-77-1 1-Aminocarbonyl-2-pyrrolin-2-carbonsaeure 
• 87875-92-1 2,3,6,7-Tetrahydro-2-oxo-1H-1,3-diazepin-4-carbonsaeure 
• 17781-82-7 L-proline anion 
• 70-26-8 D-ornithine 
• 70-26-8 L-ornithine 
• 344-25-2 D-Prolin 
• 4043-87-2 pipecolic Acid 
• 627-77-0 citrulline 
• 147-85-3 L-proline 

Downstream Products

• 91360-23-5 1-benzyl-3-carbamoylpyridinium-4-d anion 
• 281668-26-6 D/L-proline anion 
• 66822-26-2 1-(2-amino-2-oxoethyl)pyridin-1-ium-3-carboxamide 
• 16183-83-8 1-benzyl-3-carbamoylpyridinium ion 
• 3106-60-3 N-methyl-3-carboxamidepyridinium 

Relevant articles and documents

Characterization of three novel enzymes with imine reductase activity

Imine reductases (IRED) are promising catalysts for the synthesis of optically pure secondary cyclic amines. Three novel IREDs from Paenibacillus elgii B69, Streptomyces ipomoeae 91-03 and Pseudomonas putida KT2440 were identified by amino acid or structural similarity search, cloned and recombinantly expressed in E. coli and their substrate scope was investigated. Besides the acceptance of cyclic amines, also acyclic amines could be identified as substrates for all IREDs. For the IRED from P. putida, a crystal structure (PDB-code 3L6D) is available in the database, but the function of the protein was not investigated so far. This enzyme showed the highest apparent E-value of approximately Eapp = 52 for (R)-methylpyrrolidine of the IREDs investigated in this study. Thus, an excellent enantiomeric purity of >99% and 97% conversion was reached in a biocatalytic reaction using resting cells after 24 h. Interestingly, a histidine residue could be confirmed as a catalytic residue by mutagenesis, but the residue is placed one turn aside compared to the formally known position of the catalytic Asp187 of Streptomyces kanamyceticus IRED.

Deuterium Isotope Effects for the Nonenzymatic and Glutamate Dehydrogenase Catalyzed Reduction of an α-Imino Acid by NADH

The mechanisms of the nonenzymatic and glutamate dehydrogenase catalyzed reduction of an α-imino acid, Δ1-pyrroline-2-carboxylic acid, by NAD(P)H have been studied by deuterium isotope effects.The partition isotope effects for the nonenzymatic reaction with 4-deuterated 1,4-dihydronicotinamides are about the same as the corresponding observed kinetic isotope effects with 4,4-dideuterio-1,4-dihydronicotinamides, suggesting that the hydrogen-transfer step is solely rate limiting.This reaction is characterized by an intrinsic primary kinetic isotope effect of 1.3 and a very product-like transition state.The enzymatic reaction has been studied by determining the second-order rate constants for the reduction of the imino acid by the enzyme-NADH complex with 4,4-dideuterio and stereospecifically labeled 4-deuterio NADH.The primary isotope effect when the in-place hydrogen is protium is 3.80, and the secondary isotope effect when the in-flight hydrogen is protium is 1.21.Deuteration at one site lowers the isotope effects at the other by 13percent.The following conclusions emerge for the reduction of the imino acid by the enzyme-NADH complex: (1) the hydrogen-transfer step is at least rate contributing, (2) the transition state for this reaction is more symmetric than that of the nonenzymatic reaction, (3) both the C-4 hydrogens of NADH participate in the reaction coordinate motion, and (4) there is some nuclear tunneling in the reaction coordinate.The kinetic isotope effect for the oxidation of proline and proline-2-d by enzyme-NADP(+) is 4.1.