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1299292-94-6

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1299292-94-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1299292-94-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,9,2,9 and 2 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1299292-94:
(9*1)+(8*2)+(7*9)+(6*9)+(5*2)+(4*9)+(3*2)+(2*9)+(1*4)=216
216 % 10 = 6
So 1299292-94-6 is a valid CAS Registry Number.

1299292-94-6Relevant articles and documents

Facile synthesis of dihaloheterocycles via electrophilic iodocyclization

Yang, Fan,Jin, Tienan,Bao, Ming,Yamamoto, Yoshinori

supporting information; scheme or table, p. 10147 - 10155 (2012/01/03)

An efficient and facile electrophilic iodocyclization for the synthesis of various O-, N-, and S-containing dihaloheterocycles has been developed. A wide range of the substituted propargyl alcohols having -OH, -NTs, and -SAc functional groups reacted with molecular iodine or bromoiodine at ambient temperature to produce the corresponding dihalogenated O-, N-, and S-containing five- and six-membered heterocycles in good to high yields; Under optimized solvent conditions, the reactions of various substituted but-2-yn-1-ones bearing -OH, -NTs, and -SAc functional groups at C4-position, with iodine or bromoiodine at ambient temperature afforded the corresponding 3,4-diiodo- and 3-bromo-4-iodo-substituted furans, pyrroles, and thiophenes in good to high yields. Further transformation of the resulting iodine- or bromine-containing products to polyaromatics potentially of useful as organo-material intermediates has been investigated.

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