Benzyl (S)-4-oxo-2-azetidinecarboxylate

Modify Date: 2025-08-25 16:00:54

Benzyl (S)-4-oxo-2-azetidinecarboxylate Structure
Benzyl (S)-4-oxo-2-azetidinecarboxylate structure
Common Name Benzyl (S)-4-oxo-2-azetidinecarboxylate
CAS Number 72776-05-7 Molecular Weight 205.21000
Density 1.268 g/cm3 Boiling Point 404.7ºC at 760 mmHg
Molecular Formula C11H11NO3 Melting Point 137-140ºC(lit.)
MSDS USA Flash Point 198.5ºC

 Names

Name (s)-benzyl 2-azetidinone-4-carboxylate
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.268 g/cm3
Boiling Point 404.7ºC at 760 mmHg
Melting Point 137-140ºC(lit.)
Molecular Formula C11H11NO3
Molecular Weight 205.21000
Flash Point 198.5ºC
Exact Mass 205.07400
PSA 55.40000
LogP 0.94710
Index of Refraction 1.565
Storage condition 2-8°C

 Safety Information

Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2933790090

 Synthetic Route

~47%

Benzyl (S)-4-oxo-2-azetidinecarboxylate Structure

Benzyl (S)-4-ox...

CAS#:72776-05-7

Literature: US7202279 B1, ; Page/Page column 45 ;

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Benzyl (S)-4-oxo-2-azetidinecarboxylate Structure

Benzyl (S)-4-ox...

CAS#:72776-05-7

Literature: Tetrahedron, , vol. 46, # 13/14 p. 4733 - 4748

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Benzyl (S)-4-oxo-2-azetidinecarboxylate Structure

Benzyl (S)-4-ox...

CAS#:72776-05-7

Literature: Journal of the Chemical Society, Chemical Communications, , # 13 p. 992 - 994

 Customs

HS Code 2933790090
Summary 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

 Articles3

More Articles
Orally active beta-lactam inhibitors of human leukocyte elastase. 3. Stereospecific synthesis and structure-activity relationships for 3,3-dialkylazetidin-2-ones.

J. Med. Chem. 38 , 2449, (1995)

The stereospecific synthesis of several 4-[(4-carboxyphenyl)oxy]- 3,3-dialkyl-1-[[(1-phenylalkyl)-amino]carbonyl]azetidin-2-on es 3 is described in which the C-3 alkyl groups were varied from methyl t...

Baldwin, J.E. et al.

Tetrahedron 51 , 11581, (1995)

Hanessian, S. et al.

Synlett , 33, (1992)

 Synonyms

benzyl (2S)-4-oxoazetidine-2-carboxylate
MFCD00798164
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