Cas 83641-63-8,(Z)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-phenylsulfanyl-but-2-enoic acid 4-nitro-benzyl ester

83641-63-8

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Basic information

Product Name: (Z)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-phenylsulfanyl-but-2-enoic acid 4-nitro-benzyl ester
Synonyms:
CAS NO:83641-63-8
Molecular Formula:
Molecular Weight: 671.018
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: (Z)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-phenylsulfanyl-but-2-enoic acid 4-nitro-benzyl ester(CAS DataBase Reference)
NIST Chemistry Reference: (Z)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-phenylsulfanyl-but-2-enoic acid 4-nitro-benzyl ester(83641-63-8)
EPA Substance Registry System: (Z)-4-{(2R,3S)-1-(tert-Butyl-dimethyl-silanyl)-3-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-4-oxo-azetidin-2-yl}-3-phenylsulfanyl-but-2-enoic acid 4-nitro-benzyl ester(83641-63-8)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 83641-63-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 83641-63-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,4 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83641-63:
(7*8)+(6*3)+(5*6)+(4*4)+(3*1)+(2*6)+(1*3)=138
138 % 10 = 8
So 83641-63-8 is a valid CAS Registry Number.

83641-63-8Upstream product

83641-63-8Downstream Products

74288-37-2 4-nitrobenzyl (2R*,3S*)-1-tert-butyldimethylsilyl-3-<(R*)-1-tert-butyldimethylsilyloxyethyl>-4,β-dioxo-2-azetidinebutyrate

83641-63-8Relevant academic research and scientific papers

A MILD METHOD FOR THE CONVERSION OF PROPIOLIC ESTERS TO β-KETO ESTERS. APPLICATION TO THE FORMAL TOTAL SYNTHESIS OF (+/-)-THIENAMYCIN

Shibasaki, Masakatsu,Nishida, Atsushi,Ikegami, Shiro

, p. 2875 - 2878 (2007/10/02)

An extremely mild method for the transformation of propiolic esters to β-keto esters via thiol addition is reported, including its succesful application to the synthesis of (+/-)-thienamycin.

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