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194146-32-2

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194146-32-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 194146-32-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,4,1,4 and 6 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 194146-32:
(8*1)+(7*9)+(6*4)+(5*1)+(4*4)+(3*6)+(2*3)+(1*2)=142
142 % 10 = 2
So 194146-32-2 is a valid CAS Registry Number.

194146-32-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name (4S,5S,2E)-5-amino-N-diphenylmethylene-1-O-tert-butyldimethylsilyl-2-hexen-1,4-diol

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:194146-32-2 SDS

194146-32-2Relevant articles and documents

Glycosidase inhibitors: Synthesis of enantiomerically pure aza-sugars from Schiff base amino esters via tandem reduction-alkenylation and osmylation

Polt, Robin,Sames, Dalibor,Chruma, Jason

, p. 6147 - 6158 (2007/10/03)

Nitrogen-in-the-ring 'aza-sugars' have been synthesized in enantiomerically pure form from the amino acid L-alanine in excellent overall yield. The O'Donnell's Schiff base of L-alanine methyl ester 9a was converted to aza-sugar L-fuco-1-deoxy-nojirimycin, 18, and to the epimer L-gulo-1- deoxy-nojirimycin, 20, in eight steps. The overall yields were 20 and 29%, respectively. The methodology for the efficient generation of silyl- and benzyl-protected (E)-3-lithio-2-propen-1-ols, and the use of these alkenyllithiums with iBu5Al2H as nucleophiles in the threo-selective tandem reduction-alkenylation of the Schiff base esters is described. Osmium- catalyzed cis-oxygenation of the resulting olefin products was selective for the galacto (fuco) amino polyols in all cases for the acyclic olefins, and was gulo-selective for the cyclic D-4,5-dihydropyridine pivalate, 17c. TEMPO- NaOCl was selective for oxidation of the primary position of the acyclic Schiff bases, and allowed for minimal protection/deprotection of the intermediates. The resulting N-benzhydryl heterocycles were easily deprotected with H2-Pd at atmospheric pressure.

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