57090-90-1

Basic information

• Product Name: 1H-Imidazole-4-carboxaldehyde,oxime(9CI)
• Synonyms: 1H-Imidazole-4-carboxaldehyde,oxime(9CI);1H-Imidazole-4-carbaldehyde oxime
• CAS NO: 57090-90-1
• Molecular Formula: C₄H₅N₃O
• Molecular Weight: 0
• Product Categories: OXIME
• Mol File: 57090-90-1.mol
• Article Data: 8

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1H-Imidazole-4-carboxaldehyde,oxime(9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-Imidazole-4-carboxaldehyde,oxime(9CI)(57090-90-1)
• EPA Substance Registry System: 1H-Imidazole-4-carboxaldehyde,oxime(9CI)(57090-90-1)

Safety Data

• Hazardous Substances Data: 57090-90-1(Hazardous Substances Data)

Upstream product

• 3034-50-2 4⁽⁵⁾formylimidazole 
• 822-36-6 4-methyl-1H-imidazole 

Downstream Products

• 57090-88-7 1H-imidazole-4-carbonitrile 
• 56-92-8 histamine dichloride 
• 57090-88-7 1-H-imidazole-5-carbonitrile 
• 857352-41-1 1(H)-imidazole-5-nitrolic acid 
• 66247-84-5 imidazole-4-methanamine dihydrochloride 

Relevant articles and documents

Method for preparing 1H-imidazole-4-carbonitrile

The invention discloses a method for preparing 1H-imidazole-4-carbonitrile, and particularly relates to the technical field of fine chemical product preparation. The method for preparing 1H-imidazole-4-carbonitrile comprises the following steps: step (1) oxidation reaction: performing oxidation on 4-hydroxymethylimidazole to obtain 1H-imidazole-4-carboxaldehyde; step (2) oximation reaction: performing oximation reaction on the 1H-imidazole-4-carboxaldehyde prepared in the step (1) to obtain 4-formaldoximido imidazole; and step (3) dehydration reaction: performing dehydration reaction on the 4-formaldoximido imidazole prepared in the step (2) to obtain 1H-imidazole-4-carbonitrile. The method provided by the invention has the advantages of reducing many steps due to intermediates are not purified from the beginning of the reaction to the end of the process, reducing energy consumption due to high and low temperature equipment is not used, reducing environmental pollution due to acidic wastewater is not generated, and having a high yield of products; the invention proposes a complete process route for synthesizing 1H-imidazole-4-carbonitrile by using 4-hydroxymethylimidazole as a rawmaterial; and the method is simple in process and easy to realize industrial production.

Copper(ii)-promoted direct conversion of methylarenes into aromatic oximes

A simple and efficient catalytic system for direct conversion of methylarenes into aromatic oximes has been developed, with Cu(OAc)2 as catalyst, NHPI (N-Hydroxyphthalimide) as additive, TBN (tert-butyl nitrite) as both the nitrogen source and the oxidant. This process proceeds under mild conditions, tolerates a wide range of substrates, affording the targeted aromatic oximes in 63-86% yields.

SUBSTITUTED BIARYLS, PROCESS FOR THEIR MANUFACTURE AND USE THEREOF AS MEDICAMENTS

The present invention relates to compounds of general formula (I) wherein A, B, L, R1, R2, R3a and R3b are defined as in the specification, the tautomers, the enantiomers, the diastereomers, the mixtures thereof and the salts thereof, particularly the physiologically acceptable salts thereof with inorganic or organic acids or bases, which have valuable properties.