4-acetoxy-2-azetidinone

Structural formula
Simplified structural formula without stereochemistry
General
Surname	4-acetoxy-2-azetidinone
other names	4-AA AOSA
Molecular formula	C 5 H 7 NO 3
Brief description	dark yellow solid
External identifiers / databases
CAS number 28562-53-0 EC number 249-083-7 ECHA InfoCard 100.044.606 PubChem 119981 Wikidata Q17122082
properties
Molar mass	129.11 g mol −1
Physical state	firmly
Melting point	38-40 ° C
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 314-334 P: 261-280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

4-Acetoxy-2-azetidinone or 4-AA is a chemical compound from the group of 2-azetidinones (β-lactams). 4-AA is a precursor to the β-lactam antibiotics from the carbapeneme and peneme families .

Extraction and presentation

One possible representation for 4-AA is based on threonine .

Individual evidence

1. ↑ ^{a b c d e} data sheet 4-Acetoxy-2-azetidinone, 98% from Sigma-Aldrich , accessed on June 2, 2014 ( PDF ).
2. ↑ Guo-Bin Zhou, Yue-Qing Guan, H. e. Tang, Yan-Bin Zhao, Li-Rong Yang: Practical synthetic approach to 4-acetoxy-2-azetidinone for the preparation of carbapenem and penem antibiotics . In: Research on Chemical Intermediates . tape 38 , no. 1 , January 2012, p. 251-259 , doi : 10.1007 / s11164-011-0344-5 ( PDF ).