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66397-25-9

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66397-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66397-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,9 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 66397-25:
(7*6)+(6*6)+(5*3)+(4*9)+(3*7)+(2*2)+(1*5)=159
159 % 10 = 9
So 66397-25-9 is a valid CAS Registry Number.

66397-25-9Downstream Products

66397-25-9Relevant articles and documents

Novel One-Pot Synthetic Method for Propargyl Alcohol Derivatives from Allyl Alcohol Derivatives

Kutsumura, Noriki,Inagaki, Mai,Kiriseko, Akito,Saito, Takao

, p. 1844 - 1850 (2015/06/30)

An efficient one-pot procedure for the synthesis of propargyl alcohol derivatives from allyl alcohol derivatives has been developed. The key to this transformation from a C-C double bond to a C-C triple bond is that hydrogen bromide elimination from 1,2-dibromoalkanes that contain a neighboring oxygen functional group is promoted by the inductive electron-withdrawing effect of the oxygen functional group. In the one-pot reaction, tetrabutylammonium hydroxide was the best base, and the addition of molecular sieves 13X also promoted the reaction.

Site-selective and regioselective Diels-Alder reaction of allenyl aryl ethers

Moghaddam, Firouz Matloubi,Kiamehr, Mostafa

experimental part, p. 1333 - 1337 (2011/09/16)

The site-selectivity and regioselectivity of Diels-Alder reactions of allenyl aryl ethers with cyclopentadiene and acrolein were studied. While cyclopentadiene (as an electron-rich diene) only reacted with the external double bond of allenyl aryl ethers t

Microwave promoted rapid isomerisation of propargyl ethers into allenyl ethers

Moghaddam, Firouz Matloubi,Emami, Rahdar

, p. 4073 - 4077 (2007/10/03)

Aryl or alkyl propargyl ethers have been isomerized efficiently with good to excellent yield into corresponding allenyl ethers in the presence of potassium tert-butoxide under the microwave irradiation.

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