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148407-32-3

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148407-32-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148407-32-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,4,0 and 7 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 148407-32:
(8*1)+(7*4)+(6*8)+(5*4)+(4*0)+(3*7)+(2*3)+(1*2)=133
133 % 10 = 3
So 148407-32-3 is a valid CAS Registry Number.

148407-32-3Relevant articles and documents

Scalable synthesis of the pink gypsy moth Lymantria mathura sex pheromone (-)-mathuralure

Mowat, Jeffrey,Senior, James,Kang, Baldip,Britton, Robert

, p. 235 - 239 (2013/05/09)

Mathuralure (1) is the major sex pheromone component of the pink gypsy moth Lymantria mathura, a potentially devastating invasive species to North America. To support population monitoring of this moth, a gram-scale synthesis of (-)-mathuralure (1) was developed. This process relies on coupling an alkynyl lithium species with a chloroepoxide and provides access to the natural product in a 10% yield over 10 steps.

Fleming-Tamao oxidation and masked hydroxyl functionality: Total synthesis of (+)-pramanicin and structural elucidation of the antifungal natural product (-)-pramanicin

Barrett, Anthony G. M.,Head, John,Smith, Marie L.,Stock, Nicholas S.,White,Williams

, p. 6005 - 6018 (2007/10/03)

The total synthesis of (+)-pramanicin (41b) is reported, thereby establishing the relative and absolute stereochemistry of the naturally occurring antifungal agent. The key steps involve (i) conjugate addition of the diethyl((diethylamino)diphenylsilyl)zincate to a suitably protected γ- lactam 3 and quenching of the resultant enolate with the α,β-unsaturated γ,δ-epoxy aldehyde 2 (X = H), (ii) Ni(acac)2-catalyzed hydroxylation of a β-dicarbonyl array, and (iii) Fleming-Tamao oxidation to reveal the masked C-3 hydroxyl group.

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