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4-Benzeneselenenyl-5-isopropyl-6-methoxy-tetrahydro-2H-pyran-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

131262-65-2

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131262-65-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 131262-65-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,6 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 131262-65:
(8*1)+(7*3)+(6*1)+(5*2)+(4*6)+(3*2)+(2*6)+(1*5)=92
92 % 10 = 2
So 131262-65-2 is a valid CAS Registry Number.

131262-65-2Downstream Products

131262-65-2Relevant academic research and scientific papers

A RING CONTRACTION OF 6-ALKOXY-2,3-DIHYDRO-6H-PYRAN-3-ONES TO POLYFUNCTIONALIZED CYCOPENTENONES

Kolb, Hartmuth C,Hoffmann, Martin R.

, p. 5127 - 5144 (2007/10/02)

The rearrangement of 6-alkoxy-2,3-dihydro-6H-pyran-3-ones (1) to trans-4-alkoxy-5-hydroxy-2-cyclopenten-1-ones (2) has been optimized.The effect of buffer concentration (PhCO2H/KOAc) on reaction rate and yield suggests specific acid catalysis.Substitution patterns and influence of the 6-alkoxy substituent have been investigated.Applications in natural product synthesis are described.

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