73723-31-6

Basic information

• Product Name: Propanoic acid, 3-amino-2-diazo-3-oxo-, ethyl ester
• Synonyms: Propanoic acid, 3-amino-2-diazo-3-oxo-, ethyl ester
• CAS NO: 73723-31-6
• Molecular Formula: C5H7N3O3
• Molecular Weight: 0
• Mol File: 73723-31-6.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Propanoic acid, 3-amino-2-diazo-3-oxo-, ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Propanoic acid, 3-amino-2-diazo-3-oxo-, ethyl ester(73723-31-6)
• EPA Substance Registry System: Propanoic acid, 3-amino-2-diazo-3-oxo-, ethyl ester(73723-31-6)

Safety Data

• Hazardous Substances Data: 73723-31-6(Hazardous Substances Data)

Upstream product

• 5256-74-6 1,3-diethyl 2-diazopropanedioate 
• 57072-87-4 chlorocarbonyl-diazo-acetic acid ethyl ester 
• 7664-41-7 ammonia 
• 7732-18-5 water 
• 73723-25-8 α-(Chlorsulfonylaminocarbonyl)-α-diazoessigsaeure-ethylester 

Downstream Products

• 1436429-58-1 dibenzyl 2-(2-(1H-pyrazol-1-yl)phenyl)malonate 

Relevant articles and documents

Interplay of orbital symmetry and nonstatistical dynamics in the thermal rearrangements of bicyclo[n.1.0]polyenes

CASSCF and CASPT2 calculations have been carried out on some of the thermal rearrangements of bicyclo[2.1.0]pentene (BCP), bicyclo[4.1.0]hepta-2,4-diene (BCH), bicyclo[6.1.0]nona-2,4,6-triene (BCN), and 9,9-dicyanobicyclo[6.1.0]nona-2,4,6-triene (DCBCN). In addition, experiments have been conducted to determine the stereoselectivity and temperature dependence of the nondegenerate rearrangement of 9,9-dicyanobicyclo[6.1.0]nona-2,4,6-triene-exo-15N. The calculations and experiments allow a consistent picture to be drawn for these reactions. The principal conclusions are as follows. (1) The ring-walk rearrangements of BCP, BCN, and DCBCN are pericyclic reactions occurring with a strong preference for inversion of configuration at the migrating carbon. However, the ring-walk rearrangement of BCH is a nonpericyclic reaction. (2) The rearrangement of DCBCN to 9,9-dicyanobicyclo[4.2.1]nona-2,4,7-triene occurs with a preferred stereochemistry corresponding to a 1,3 migration with retention. However, this reaction is not a pericyclic process; the stereoselectivity is probably of dynamic origin. (3) Cyano substituents can significantly reduce the activation energy for a reaction occurring via a singlet biradical, but they do'not necessarily cause the intermediate to sit in a deeper local minimum on the potential energy surface.

Investigations on Diazo Compounds and Azides, XXXV. - Acylation of Diazomethylphosphoryl and Diazomethylcarbonyl Compounds with Acyl Isocyanates and Isothiocyanates

The aroyl isocyanates 7a-c react with the diazomethylphosphoryl compounds 8a-d with formation of the phosphorylated diazoacetamides 9a, b and d-j as well as 1,3-oxazolin-4-ones 10b-j.The reaction of chlorosulfonyl isocyanate (13) with 8a, c, e and f proce