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16149-84-1

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16149-84-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16149-84-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,4 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 16149-84:
(7*1)+(6*6)+(5*1)+(4*4)+(3*9)+(2*8)+(1*4)=111
111 % 10 = 1
So 16149-84-1 is a valid CAS Registry Number.

16149-84-1Downstream Products

16149-84-1Relevant articles and documents

A new synthesis of lactones from tertiary alkenylcarbinols by cobalt-catalyzed photocarbonylation under ambient conditions

Chow, Yuan L.,Huang, Yu-Jin,Dragojlovic, Veljko

, p. 740 - 742 (2007/10/02)

In the presence of a Co catalyst, tertiary vinyl-, propenyl-, and allylcarbinols were chelatively cycloadded to carbon monoxide to produce lactones by xanthone-sensitized photoreaction in tetrahydrofuran, under CO at 1 atmosphere and at room temperature.At lower temperatures the isomerization of alkenyl-carbinols was suppressed and lactones were obtained with improved selectivity.The photoprocess was facilitated by addition of pyridine or hydrogen and retarded in presence of amines or phosphines.Mechanistic interpretations for the process and the accompanying effects are discussed.Key words: chelative carbonylation, photocarbonylation, carbonylation of olefins, lactones synthesis from alkenylalcohols.

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