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99944-07-7

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99944-07-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99944-07-7 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 4 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 99944-07:
(7*9)+(6*9)+(5*9)+(4*4)+(3*4)+(2*0)+(1*7)=197
197 % 10 = 7
So 99944-07-7 is a valid CAS Registry Number.

99944-07-7Downstream Products

99944-07-7Relevant articles and documents

Palladium-Catalyzed Suzuki Cross-Coupling of 2-Halo-Deazapurines with Potassium Organotrifluoroborate Salts in the Regioselective Synthesis of Imidazo[4,5-b]pyridine Analogues

Savitha, Bhaskaran,Sajith, Ayyiliath. M.,Joy, M. Nibin,Khader, K.K. Abdul,Muralidharan,Padusha, M. Syed Ali,Bodke, Yadav D.

, p. 618 - 630 (2016)

In this paper, we report the use of potassium organotrifluoroborate salts as nucleophilic organoboron reagents in the Suzuki cross-coupling reactions of 2-halo deazapurines. Regio-isomeric C-2-substituted imidazo[4,5-b]pyridine analogues were synthesized by employing this protocol in good to excellent yields. Whereas aryl and heteroaryl trifluoroborates reacted readily to give the coupled products in high yields, alkyltrifluoroborates were found to be less reactive. The utilization of tetrabutylammonium acetate was found to play a substantial role in enhancing the reaction rates of the cross-coupling process. Also, a comparative study was performed between boronic acids and potassium organotrifluoroborate salts.

4-[(bicycle heterocyclyl)-methyl and -hetero]-piperidines

-

, (2008/06/13)

4-[(Bicyclic heterocyclyl)methyl and -hetero]-piperidines having antihistaminic and serotonin-antagonistic properties which compounds are useful agents in the treatment of allergic diseases.

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