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1208989-34-7

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1208989-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1208989-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,8,9,8 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1208989-34:
(9*1)+(8*2)+(7*0)+(6*8)+(5*9)+(4*8)+(3*9)+(2*3)+(1*4)=187
187 % 10 = 7
So 1208989-34-7 is a valid CAS Registry Number.

1208989-34-7Relevant articles and documents

Development and Scope of the Arene-Fused Domino Michael/Mannich Reaction: Application to the Total Syntheses of Aspidosperma Alkaloids (-)-Aspidospermidine, (-)-Tabersonine, and (-)-Vincadifformine

Zhao, Senzhi,Andrade, Rodrigo B.

, p. 521 - 531 (2017)

The development and application of the arene-fused domino Michael/Mannich route to the tetrahydrocarbazole (ABE) core of Aspidosperma alkaloids is described. The scope of this novel transformation was studied in terms of the nucleophilic component (i.e., N-sulfinyl metallodienamine) and the electrophilic component (i.e., Michael acceptor). The successful application of this methodology toward the concise total syntheses of classical indole alkaloids (-)-aspidospermidine, (-)-tabersonine, and (-)-vincadifformine in 10-11 steps, respectively, is also discussed.

Unprecedented copper(I) bifluoride complexes: Synthesis, characterization and reactivity

Vergote, Thomas,Nahra, Fady,Welle, Alexandre,Luhmer, Michel,Wouters, Johan,Mager, Nathalie,Riant, Olivier,Leyssens, Tom

supporting information; experimental part, p. 793 - 798 (2012/03/26)

To be or not to bifluoride: Two synthetic pathways to unprecedented N-heterocyclic carbene copper(I) bifluoride complexes have been developed (see scheme). Catalytic tests demonstrated that copper(I) bifluorides are very efficient catalysts, which do not

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