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849706-05-4

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849706-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 849706-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,7,0 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 849706-05:
(8*8)+(7*4)+(6*9)+(5*7)+(4*0)+(3*6)+(2*0)+(1*5)=204
204 % 10 = 4
So 849706-05-4 is a valid CAS Registry Number.

849706-05-4Downstream Products

849706-05-4Relevant articles and documents

Process for the preparation of substituted pyrrolidine derivatives and intermediates

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Page/Page column 8, (2010/11/08)

Two syntheses are provided; one for the preparation of (3R,4R)-4-(hydroxymethyl)pyrrolidin-3-ol, and other for the preparation of (3S,4R)-4-(hydroxymethyl)pyrrolidin-3-ol. (3R,4R)-4-(hydroxymethyl)pyrrolidin-3-ol is prepared using the achiral ylide prepared from benzylamine instead of phenethylamine (Scheme 3) which provides a crystalline intermediate. The synthesis of (3S,4R)-4-(hydroxymethyl)pyrrolidin-3-ol is achieved from (S)-diethylmalate as described in Scheme 4. A process for preparing camphor sultam is also provided.

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