Cas 118559-57-2,2-{3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[ethoxycarbonyl-(triphenyl-λ<sup>5</sup>-phosphanylidene)-methylsulfanyl]-4-oxo-azetidin-1-yl}-3-methyl-but-2-enoic acid methyl ester

118559-57-2

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Basic information

Product Name: 2-{3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[ethoxycarbonyl-(triphenyl-λ⁵-phosphanylidene)-methylsulfanyl]-4-oxo-azetidin-1-yl}-3-methyl-but-2-enoic acid methyl ester
Synonyms:
CAS NO:118559-57-2
Molecular Formula:
Molecular Weight: 719.954
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 2-{3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[ethoxycarbonyl-(triphenyl-λ⁵-phosphanylidene)-methylsulfanyl]-4-oxo-azetidin-1-yl}-3-methyl-but-2-enoic acid methyl ester(CAS DataBase Reference)
NIST Chemistry Reference: 2-{3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[ethoxycarbonyl-(triphenyl-λ⁵-phosphanylidene)-methylsulfanyl]-4-oxo-azetidin-1-yl}-3-methyl-but-2-enoic acid methyl ester(118559-57-2)
EPA Substance Registry System: 2-{3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-2-[ethoxycarbonyl-(triphenyl-λ⁵-phosphanylidene)-methylsulfanyl]-4-oxo-azetidin-1-yl}-3-methyl-but-2-enoic acid methyl ester(118559-57-2)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 118559-57-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 118559-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,5,5 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 118559-57:
(8*1)+(7*1)+(6*8)+(5*5)+(4*5)+(3*9)+(2*5)+(1*7)=152
152 % 10 = 2
So 118559-57-2 is a valid CAS Registry Number.

118559-57-2Upstream product

118559-57-2Downstream Products

118559-78-7 {3-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-1-methoxyoxalyl-4-oxo-azetidin-2-ylsulfanyl}-(triphenyl-λ⁵-phosphanylidene)-acetic acid ethyl ester

118559-57-2Relevant academic research and scientific papers

A concise synthesis of penems

Barker,Campbell,Jenkins

, p. 4359 - 4362 (1990)

A brief and efficient new synthesis of 2-substituted 6-[1(R)-hydroxyethyl]-penems is described. The key step involves reaction of an azetidin-2-one-4-disulphide with either stabilized or unstablized phosphoranes, giving ylids which cyclize with the 1-oxalimide group to give 2-substituted penems.

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