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1039749-45-5

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1039749-45-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1039749-45-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,9,7,4 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1039749-45:
(9*1)+(8*0)+(7*3)+(6*9)+(5*7)+(4*4)+(3*9)+(2*4)+(1*5)=175
175 % 10 = 5
So 1039749-45-5 is a valid CAS Registry Number.

1039749-45-5Downstream Products

1039749-45-5Relevant articles and documents

New and expeditious tandem sequence Aza-Michael/intramolecular nucleophilic substitution route to substituted γ-lactams: Synthesis of the tricyclic core of (±)-martinellines

Comesse, Sebastien,Sanselme, Morgane,Daich, Adam

, p. 5566 - 5569 (2008)

(Chemical Equation Presented) A new and highly diastereoselective tandem reaction azaMichael/intramolecular nucleophilic substitution is presented. This unprecedented tandem reaction between N-substituted α-bromoacetamides and Michael acceptors proceeds with good yields and excellent diastereoselectivity to provide the corresponding trisubstituted γ-lactam systems. An application to the concise synthesis of the tricyclic core of (±)-martinelline alkaloids is also described.

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