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62774-42-9

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62774-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62774-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,7,7 and 4 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 62774-42:
(7*6)+(6*2)+(5*7)+(4*7)+(3*4)+(2*4)+(1*2)=139
139 % 10 = 9
So 62774-42-9 is a valid CAS Registry Number.

62774-42-9Relevant articles and documents

SYNTHESIS OF (L)-DAUNOSAMINE AND RELATED AMINO SUGARS

Sammes, Peter G.,Thetford, Dean

, p. 111 - 124 (2007/10/02)

1-(2-Furyl)ethanol (6) has been converted into methyl (+/-)-daunosaminide (1) and methyl (+/-)-ristosaminide (3) by use of an intramolecular cyclisation of a trichloroacetimidate group. (+/-)-Daunosamine (1) has been obtained more directly from the alcohol (10) by use of a modified Mitsunobu reaction; the scope of the latter reaction has been explored using cyclohex-2-en-1-ol as a model substrate.Asymmetric reduction of 2-acetylfuran (5) has given (S)-1-(2-furyl)ethanol (46) in good enantiomeric excess, thus providing a short route to the L-enantiomers of the amino sugars (1), (2), and (3) from a cheap, non-carbohydrate precursor.

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