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246872-14-0

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246872-14-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 246872-14-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,4,6,8,7 and 2 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 246872-14:
(8*2)+(7*4)+(6*6)+(5*8)+(4*7)+(3*2)+(2*1)+(1*4)=160
160 % 10 = 0
So 246872-14-0 is a valid CAS Registry Number.

246872-14-0Relevant articles and documents

NHC catalyzed enantioselective Coates-Claisen rearrangement: A rapid access to the dihydropyran core for oleuropein based secoiridoids

Vedachalam, Seenuvasan,Murugesh, Nithya,Chakraborty, Priyanka,Karvembu, Ramasamy,Liu, Xue-Wei

supporting information, p. 1832 - 1839 (2018/02/09)

We present the short synthesis of the suitably functionalized enantioselective dihydropyran core of secoiridoids using an N-heterocyclic carbene (NHC) catalyzed Coates-Claisen rearrangement mechanism. The key steps of the synthesis are (i) the highly enantioselective NHC catalyzed Coates-Claisen rearrangement for the dihydropyran core, (ii) the assembly of the target dihydropyran core structure of oleuropein from a highly diastereoselective exocyclic trans alkene, and (iii) the highly stereoselective assembly of a monoterpene elenolide core structure.

Preparation of primary amines by the alkylation of O-sulfonyloximes of benzophenone derivatives with Grignard reagents

Tsutsui, Hironori,Ichikawa, Tomoko,Narasaka, Koichi

, p. 1869 - 1878 (2007/10/03)

Primary amines are prepared by the electrophilic amination of Grignard reagents with benzophenone O-sulfonyloxime derivatives. 4,4'- Bis(trifluoromethyl)benzophenone O-sulfonyloximes react with alkyl Grignard reagents in the presence of a catalytic amount of CuCN in tetrahydrofuran- hexamethylphosphoric triamide to give N-alkylimines, which are readily hydrolyzed to primary amines. 3,3',5,5'-Tetrakis(trifluoromethyl)benzophenone O-p-tolylsulfonyloxime is arylated to the corresponding N-arylimines with aryl Grignard reagents in ether-toluene, and hydrolysis of the resulting imines gives aniline derivatives.

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