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7417-68-7

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7417-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7417-68-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,4,1 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7417-68:
(6*7)+(5*4)+(4*1)+(3*7)+(2*6)+(1*8)=107
107 % 10 = 7
So 7417-68-7 is a valid CAS Registry Number.

7417-68-7Relevant articles and documents

Dual behavior of masked o-benzoquinones in intramolecular Diels-Alder reactions. Expedient synthesis of highly functionalized cis-decalins from 2-methoxyphenols

Hsu, Po-Yi,Peddinti, Rama Krishna,Chittimalla, Santhosh Kumar,Liao, Chun-Chen

, p. 9156 - 9167 (2007/10/03)

The potential dual behavior as dienes and dienophiles of the diene moieties of masked o-benzoquinones (MOBs) 10a-e-12a-e, generated upon oxidation of 2-methoxyphenols 1-3 with BTIB in the presence of appropriate dienols, in their intramolecular Diels-Alde

A synthesis of gymnomitrol

Bchi, George,Chu, Ping-Sun

, p. 4509 - 4513 (2015/01/08)

Condensation of 1,2 - dimethylcyclopentene 10 with 2 - methyl - 4,4, 5 - trimethoxycyclohexa - 2,5 -dienone 7 in methylene chloride - nitromethane with added stannic chloride gave a mixture of the two diastereo-meric bicyclo[3.2.1]octanes 13 and 14 by ionic [4+2]cycloaddition. After selective reduction of the saturated carbonyl group with sodium borohydride, and hydrogenation of the double bond the two epimers 18 and 20 (ratio 3.3:1) were separable by chromatography. Protection of the hydroxy group in 18 with dihydropyran and, reduction of the α-methoxyketone 19 with calcium in liquid ammonia gave ketone 21. Gymnomitrol 1 was then prepared by Wittig olefination followed by deprotection of the hydroxy group.

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