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1183123-34-3

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1183123-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1183123-34-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,3,1,2 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1183123-34:
(9*1)+(8*1)+(7*8)+(6*3)+(5*1)+(4*2)+(3*3)+(2*3)+(1*4)=123
123 % 10 = 3
So 1183123-34-3 is a valid CAS Registry Number.

1183123-34-3Downstream Products

1183123-34-3Relevant articles and documents

Indole Synthesis through Sequential Electrophilic N-H and C-H Bond Activation Using Iodine(III) Reactivity

Fra, Laura,Mu?iz, Kilian

, p. 4351 - 4354 (2016)

An intramolecular approach towards the regioselective construction of 2,3-diarylated indoles is reported. The reaction follows an intramolecular electrophilic N-H and C-H bond functionalization between the aniline and acetylene. This methodology employs the concept of a traceless tether to provide access to the free 2,3-diarylated indole products comprising a total of 18 examples. Hypervalent iodine reagents were identified as suitable promoters and four different protocols are provided, including stoichiometric and catalytic transformations.

Lewis acid catalyzed cascade reaction of 3-(2-benzenesulfonamide)propargylic alcohols to spiro[indene-benzosultam]s

Sun, Lang,Zhu, Yuanxun,Wang, Jing,Lu, Ping,Wang, Yanguang

supporting information, p. 242 - 245 (2015/02/19)

A highly efficient and convenient construction of the spiro[indene-benzosultam] skeleton from propargylic alcohols has been developed. The reaction proceeded in a Lewis acid catalyzed cascade process, including the trapping of allene carbocation with sulfonamide, electrophilic cyclization, and intramolecular Friedel-Crafts alkylation. In the presence of NIS or NBS, iodo/bromo-substituted spiro[indene-benzosultam]s could be prepared in excellent yields.

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