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99948-46-6

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99948-46-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99948-46-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,4 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 99948-46:
(7*9)+(6*9)+(5*9)+(4*4)+(3*8)+(2*4)+(1*6)=216
216 % 10 = 6
So 99948-46-6 is a valid CAS Registry Number.

99948-46-6Relevant articles and documents

Transition-Metal-Free α-Arylation of Enolizable Aryl Ketones and Mechanistic Evidence for a Radical Process

Pichette Drapeau, Martin,Fabre, Indira,Grimaud, Laurence,Ciofini, Ilaria,Ollevier, Thierry,Taillefer, Marc

, p. 10587 - 10591 (2015)

The α-arylation of enolizable aryl ketones can be carried out with aryl halides under transition-metal-free conditions using KOtBu in DMF. The α-aryl ketones thus obtained can be used for step- and cost-economic syntheses of fused heterocycles and Tamoxifen. Mechanistic studies demonstrate the synergetic role of base and solvent for the initiation of the radical process.

Simple and efficient method for tetrahydropyranylation of alcohols and phenols by using silica supported sodium hydrogen sulphate as a catalyst

Ravi Kumar,Satyanarayana,Srinivasa Reddy

experimental part, p. 3876 - 3878 (2012/09/21)

A Simple and efficient process for tetrahydropyranylation of alcohols and phenols has been developed by reacting with dihydropyran at room temperature in presence of catalytic amount of silica supported sodium hydrogen sulphate.

Aza Hopf cyclization: synthesis and reactivity of cyclic azadieneynes

Mandal, Sayantan,Basak, Amit

scheme or table, p. 3641 - 3644 (2009/09/30)

Nine- and 10-membered azadieneynes have been synthesized for the first time via an intramolecular aza Wittig reaction. The compounds undergo Hopf cyclization under ambient conditions to the hydroxy dihydroisoquinoline derivatives.

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