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178391-26-9

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178391-26-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 178391-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,3,9 and 1 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 178391-26:
(8*1)+(7*7)+(6*8)+(5*3)+(4*9)+(3*1)+(2*2)+(1*6)=169
169 % 10 = 9
So 178391-26-9 is a valid CAS Registry Number.

178391-26-9Relevant articles and documents

Diastereoselective synthesis of heterosubstituted organogembismetallic reagents. Application to a new propargylmetalation reaction of vinyl metals

Brasseur, Denis,Marek, Ilane,Normant, Jean-F.

, p. 7235 - 7250 (1996)

The allylzincation and propargylzincation of various γ-heterosubstituted vinyl metals proceed diastereoselectively. This represents a new synthetic approach to construct two or three adjacent stereogenic centers in acyclic systems.

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