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74669-75-3

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74669-75-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74669-75-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,6 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 74669-75:
(7*7)+(6*4)+(5*6)+(4*6)+(3*9)+(2*7)+(1*5)=173
173 % 10 = 3
So 74669-75-3 is a valid CAS Registry Number.

74669-75-3Relevant articles and documents

Enantioselective synthesis of benzylic stereocentres via Claisen rearrangement of enantiomerically pure allylic alcohols: Preparation of (R)- and (S)-3-methyl-2-phenylbutylamine

Brenna, Elisabetta,Fuganti, Claudio,Gatti, Francesco G.,Passoni, Massimo,Serra, Stefano

, p. 2401 - 2406 (2007/10/03)

The Johnson-Claisen rearrangement of enantiopure allylic alcohols in triethylorthopropionate is the key step for the preparation of chiral molecules with benzylic stereogenic carbon atoms bearing an isopropyl moiety. The synthetic procedure is applied to the preparation of (R)- and (S)-3-methyl-2-phenylbutylamine.

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