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N-tert-butoxycarbonyl-N-(3-trimethylsilyl-2-propynyl)-4-methylphenylsulfonamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

189031-67-2

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189031-67-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189031-67-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,0,3 and 1 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 189031-67:
(8*1)+(7*8)+(6*9)+(5*0)+(4*3)+(3*1)+(2*6)+(1*7)=152
152 % 10 = 2
So 189031-67-2 is a valid CAS Registry Number.

189031-67-2Downstream Products

189031-67-2Relevant academic research and scientific papers

On the faciality of intramolecular Palladium(0)-Catalysed 'metallo-ene-type' cyclisations

Oppolzer, Wolfgang,Stammen, Blanda

, p. 3577 - 3586 (2007/10/03)

The palladium-calalysed 'metallo-ene' step in a cyclisation/β-elimination reaction sequence has been shown to be suprafacial with respect to the olefinic component. This reaction has been applied to the synthesis of a trisubstituted exocyclic alkenyl pyrrolidine with complete stereocontrol.

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