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670278-81-6

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670278-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 670278-81-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,0,2,7 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 670278-81:
(8*6)+(7*7)+(6*0)+(5*2)+(4*7)+(3*8)+(2*8)+(1*1)=176
176 % 10 = 6
So 670278-81-6 is a valid CAS Registry Number.

670278-81-6Relevant articles and documents

Rh-catalyzed asymmetric hydrogenation of racemic aldimines via dynamic kinetic resolution

Fan, Dongyang,Lu, Jian,Liu, Yang,Zhang, Zhenfeng,Liu, Yangang,Zhang, Wanbin

, p. 5541 - 5547 (2016/08/05)

Catalyzed by a rhodium complex of P-stereogenic diphosphine ligand trichickenfootphos (TCFP), asymmetric hydrogenation of racemic aldimines via dynamic kinetic resolution has been realized for the preparation of chiral arylglycines with good yields and enantioselectivities.

Facile synthesis of β-amino disulfides, cystines, and their direct incorporation into peptides

Nasir Baig,Kanimozhi, Catherine K.,Sudhir, V. Sai,Chandrasekaran, Srinivasan

scheme or table, p. 1227 - 1232 (2009/09/06)

Herein, we report a simple and efficient methodology for the synthesis of β-amino disulfides by regioselective ring opening of sulfamidates with benzyltriethylammonium tetrathiomolybdate [BnNEt3] 2MoS4. Stability and reactivity of different protecting groups under the reaction conditions have been discussed. This methodology has also been extended to serine and threonine derived sulfamidates to furnish cystine and 3,3′-dimethyl cystine derivatives. Georg Thieme Verlag.

Asymmetric syntheses of N-substituted α-amino esters via dynamic kinetic resolution of α-haloacyl diacetone-d-glucose

Kim, Hyun Jung,Kim, Yongtae,Choi, Eui Ta,Lee, Min Hee,No, Eun Sun,Park, Yong Sun

, p. 6303 - 6311 (2007/10/03)

Diacetone-d-glucose or d-allose mediated dynamic kinetic resolution of α-halo esters in nucleophilic substitution reaction has been investigated. Reactions with various amine nucleophiles in the presence of TBAI and DIEA can provide the N-substituted α-am

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