Cas 21138-05-6,2,2-Dimethyl-3-tert-butoxycarbonyl-4-aminomethylene-thiazolidin-5-one

21138-05-6

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Basic information

Product Name: 2,2-Dimethyl-3-tert-butoxycarbonyl-4-aminomethylene-thiazolidin-5-one
Synonyms:
CAS NO:21138-05-6
Molecular Formula:
Molecular Weight: 258.342
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: 2,2-Dimethyl-3-tert-butoxycarbonyl-4-aminomethylene-thiazolidin-5-one(CAS DataBase Reference)
NIST Chemistry Reference: 2,2-Dimethyl-3-tert-butoxycarbonyl-4-aminomethylene-thiazolidin-5-one(21138-05-6)
EPA Substance Registry System: 2,2-Dimethyl-3-tert-butoxycarbonyl-4-aminomethylene-thiazolidin-5-one(21138-05-6)

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: 21138-05-6(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 21138-05-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,3 and 8 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21138-05:
(7*2)+(6*1)+(5*1)+(4*3)+(3*8)+(2*0)+(1*5)=66
66 % 10 = 6
So 21138-05-6 is a valid CAS Registry Number.

21138-05-6Upstream product

5317-20-4 (4R)-5c-amino-2,2-dimethyl-thiazolidine-3,4r-dicarboxylic acid 3-tert-butyl ester 4-methyl ester

21138-05-6Downstream Products

21138-05-6Relevant academic research and scientific papers

The conversion of β-amino esters by alkylaluminum compounds into β-lactams

Vorbruggen,Woodward

, p. 1625 - 1634 (1993)

β-Amino esters with an unsubstituted amino group such as 1 or 19 can be cyclized by two equivalents of alkylaluminum compounds such as triisobutylaluminum in yields of up to 61% to the corresponding β-lactams 2 or 20.

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