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643759-64-2

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643759-64-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 643759-64-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,3,7,5 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 643759-64:
(8*6)+(7*4)+(6*3)+(5*7)+(4*5)+(3*9)+(2*6)+(1*4)=192
192 % 10 = 2
So 643759-64-2 is a valid CAS Registry Number.

643759-64-2Downstream Products

643759-64-2Relevant articles and documents

Organolithium-induced synthesis of acyclic unsaturated amino alcohols from epoxides of dihydropyrroles and tetrahydropyridines

Hodgson, David M.,Miles, Timothy J.,Witherington, Jason

, p. 9729 - 9742 (2003)

The alkylative double ring-opening of Bus-protected 2,5-dihydropyrrole epoxides 13 and 29 with organolithiums to give 3-substituted 1-aminobut-3-en-2-ols 13-19 and 30-32 are described. Bus-protected tetrahydropyridine epoxide 38 reacts with organolithiums to give 4-substituted 1-aminobut-4-en-3-ols 39 and tetrahydropyridinol 40.

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