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1433206-33-7

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1433206-33-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1433206-33-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,3,2,0 and 6 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1433206-33:
(9*1)+(8*4)+(7*3)+(6*3)+(5*2)+(4*0)+(3*6)+(2*3)+(1*3)=117
117 % 10 = 7
So 1433206-33-7 is a valid CAS Registry Number.

1433206-33-7Downstream Products

1433206-33-7Relevant articles and documents

Palladium(II)-catalyzed oxidative cyclization of allylic tosylcarbamates: Scope, derivatization, and mechanistic aspects

Joosten, Antoine,Persson, Andreas K. ?.,Millet, Renaud,Johnson, Magnus T.,B?ckvall, Jan-E.

supporting information, p. 15151 - 15157 (2013/01/15)

A highly selective oxidative palladium(II)-catalyzed (Wacker-type) cyclization of readily available allylic tosylcarbamates is reported. This operationally simple catalytic reaction furnishes tosyl-protected vinyl-oxazolidinones, common precursors to syn-1,2-amino alcohols, in high yield and excellent diasteroselectivity (>20:1). It is demonstrated that both stoichiometric amounts of benzoquinone (BQ) as well as aerobic reoxidation (molecular oxygen) is suitable for this transformation. The title reaction is shown to proceed through overall trans-amidopalladation of the olefin followed by β-hydride elimination. This process is scalable and the products are suitable for a range of subsequent transformations such as: kinetic resolution (KR) and oxidative Heck-, Wacker-, and metathesis reactions.

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