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160030-82-0

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160030-82-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 160030-82-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,0,0,3 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 160030-82:
(8*1)+(7*6)+(6*0)+(5*0)+(4*3)+(3*0)+(2*8)+(1*2)=80
80 % 10 = 0
So 160030-82-0 is a valid CAS Registry Number.

160030-82-0Relevant articles and documents

Studies on tandem transesterification and intramolecular cycloaddition of nitrones. 1. Sequential bicyclization of α-methoxycarbonylnitrones with allyl alcohols

Tamura, Osamu,Okabe, Toshiyuki,Yamaguchi, Tatsuya,Gotanda, Kentoku,Noe, Katsuhide,Sakamoto, Masanori

, p. 107 - 118 (2007/10/02)

Treatment of α-methoxycarbonylnitrones with 5 equiv. of allyl alcohols in the presence of 1 equiv. of titanium tetraisopropoxide causes tandem transesterification, E,Z-isomerization of the nitrone moieties, and intramolecular cycloaddition to afford bicyclized compounds in one step. To reduce amounts of allyl alcohol, combined use of a catalytic amount of titanium tetraisopropoxide and molecular sieves 4A was found to be a more improved catalytic system. It was also found that reactions of (Z)-allyl alcohols with α-methoxycarbonylnitrone are more facile than those of (E)-allyl alcohols. This aspect was extended to geometry differentiated cycloaddition.

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