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107081-87-8

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107081-87-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107081-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,0,8 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 107081-87:
(8*1)+(7*0)+(6*7)+(5*0)+(4*8)+(3*1)+(2*8)+(1*7)=108
108 % 10 = 8
So 107081-87-8 is a valid CAS Registry Number.

107081-87-8Relevant articles and documents

Dipolar Cycloaddition Reactions of (Phenylsulfonyl)alkanes and (Phenylsulfonyl)propadiene with C,N-Diphenylnitrone

Parpani, Patrizia,Zecchi, Gaetano

, p. 1417 - 1421 (2007/10/02)

The reaction of the title nitrone with (phenylsulfonyl)alkynes 1a,b results in 3-acylindoles 6a,b via unstable 4-isoxazoline cycloadducts which evolve by fission of the N-O bond and subsequent reclosure onto the ortho position of the N-phenyl substituent.Under the same conditions, the title nitrone reacts with (phenylsulfonyl)propadiene (10) to give the isomeric benzazepinone 12 and pyrrolidone 11, both of which are presumably formed from a common, transient cycloadduct.Compound 12 changes readily through a novel pathway leading to the indole derivative 14.

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