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119838-35-6

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119838-35-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119838-35-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,8,3 and 8 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 119838-35:
(8*1)+(7*1)+(6*9)+(5*8)+(4*3)+(3*8)+(2*3)+(1*5)=156
156 % 10 = 6
So 119838-35-6 is a valid CAS Registry Number.

119838-35-6Downstream Products

119838-35-6Relevant articles and documents

RESOLUTION AND USE IN α-AMINO ACID SYNTHESIS OF IMIDAZOLIDINONE GLYCINE DERIVATIVES

Fitzi, Robert,Seebach, Dieter

, p. 5277 - 5292 (2007/10/02)

The imidazolidinones (rac.-1 and rac.-2) obtained from pivalaldehyde and glycine amides are resolved efficiently by crystallization of diastereomeric ammonium salts with chiral acids (mandelates and a gulonate respectively).The free bases are acylated under Schotten-Baumann conditions to give enantiomerically pure 1-Bz-, 1-BOC-, 1-Z- or 1-formyl-2-t-butyl-3-methyl- or -3-benzyl-4-imidazolidinones.Diastereoselective alkylation of the 3-methyl derivatives (BMI) with a variety of electrophiles (LDA/THF -70 to +25 degC) gives trans-disubstituted imidazolidinones exclusively (3-22).Some of these are hydrolyzed by a procedure employing excess acidic ion exchange resin to give enantiomerically pure (R)- or (S)-amino acids.The procedure is compared with other methods of generating chiral glycine enolates.

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