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123060-91-3

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123060-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123060-91-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,0,6 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123060-91:
(8*1)+(7*2)+(6*3)+(5*0)+(4*6)+(3*0)+(2*9)+(1*1)=83
83 % 10 = 3
So 123060-91-3 is a valid CAS Registry Number.

123060-91-3Relevant articles and documents

INFLUENCE OF METHOXY- AND METHYL-AROMATIC SUBSTITUENS ON STEREOCHEMISTRY OF THE PRODUCTS IN THE ACID-CATALIZED CYCLIZATION OF 2-(2-ARYLETHYL)-1,3,3-TRIMETHYLCYCLOHEXANOLS: STEREOCONTROLLED TOTAL SYNTHESIS OF (+/-)- NIMBIDIOL AND (+/-)-NIMBIOL

Banik, Bimal K.,Ghosh, Sukumar,Ghatak, Usha Ranjan

, p. 6947 - 6955 (1988)

The distributions of the trans- and the cis-podocarpatrienes (5c-g) and (6c-g) in the cyclialkylation reaction of the easily accesible cyclohexanols (4c-g) under a mild condition have been investigated.The cyclohexanol precursors having unactivated aromatic ring proceeds with high stereoselectivity leading to the respective trans-products, while the substrates with an electron donating methoxy or a methyl substituent with respect to the site of electrophilic attack result in the corresponding cis- and the trans-product mixtures.Consistent mechanisms for these stereochemical results have been advanced.Based on these results simple synthesis of the modified diterpenes (+/-)-nimbidiol (7) and (+/-)-nimbiolmethylether (18) have been realized.

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