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83921-01-1

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83921-01-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83921-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,2 and 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83921-01:
(7*8)+(6*3)+(5*9)+(4*2)+(3*1)+(2*0)+(1*1)=131
131 % 10 = 1
So 83921-01-1 is a valid CAS Registry Number.

83921-01-1Downstream Products

83921-01-1Relevant articles and documents

A reagent for selective deprotection of alkyl acetates

Xu, Yao-Chang,Bizuneh, Amsalu,Walker, Clint

, p. 9086 - 9089 (2007/10/03)

The use of magnesium methoxide for selective deprotection of alkyl esters is described. By adjusting the equivalents of the magnesium methoxide reagent, it is possible to selectively cleave primary acetate in the presence of secondary and tertiary acetate and to cleave secondary acetate in the presence of tertiary acetate. A high selectivity can also be obtained for the same primary acetates if the β-positions of the acetates render a different steric bulkiness. This mild reagent has been successfully applied to the selective deprotection of many natural-occurring molecules including hydroxycitronnellol diacetate, trans-sobrerol diacetate, betulin diacetate, and baccatin III.

THE ENANTIOSELECTIVE BIOTRANSFORMATION OF α-TERPINEOL AND ITS ACETATE WITH THE CULTURED CELLS OF NICOTIANA TABACUM

Suga, Takayuki,Hirata, Toshifumi,Lee, Ym Sook

, p. 1595 - 1598 (2007/10/02)

In the biotransformation of the enantiomers of p-ment-1-en-8-ol (α-terpineol) and 8-acetoxy-p-ment-1-ene (α-terpinyl acetate) with the cultured suspension cells of Nicotina tabacum, it was clarified that the cultured cells effected the hydroxylation at the 6-position of (4R)-(+)-enantiomer in preference to the (4S)-(-)-enantiomer, whereas the cells did the hydrolysis of the acetoxyl group and the hydroxylation of the ethylenic linkage of (4S)-(-)-α-terpinyl acetate in preference to the (4R)-(+)-enantiomer.

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