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66694-17-5

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66694-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66694-17-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,6,9 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66694-17:
(7*6)+(6*6)+(5*6)+(4*9)+(3*4)+(2*1)+(1*7)=165
165 % 10 = 5
So 66694-17-5 is a valid CAS Registry Number.

66694-17-5Relevant articles and documents

Orthogonal selectivity with cinnamic acids in 3-substituted benzofuran synthesis through C-H olefination of phenols

Agasti, Soumitra,Sharma, Upendra,Naveen, Togati,Maiti, Debabrata

, p. 5375 - 5378 (2015)

A palladium catalyzed intermolecular annulation of cinnamic acids and phenols has been achieved for the selective synthesis of 3-substituted benzofurans. Isotope labeling, competition experiments, kinetic studies, and intermediate trapping have supported a sequence of C-C bond formation and decarboxylation followed by the C-O cyclization pathway. This journal is

Palladium-catalyzed synthesis of α-aryl acetophenones from styryl ethers and aryl diazonium saltsviaregioselective Heck arylation at room temperature

Kandasamy, Jeyakumar,Lee, Yong Rok,Singh, Adesh Kumar,Venkatesh, Rapelly

supporting information, p. 7832 - 7837 (2021/09/28)

Preparation of α-aryl acetophenones from styryl ethers and aryldiazonium salts is described. The reaction is catalyzed by palladium acetate at room temperature in the absence of ligand and base. The developed method is highly attractive in terms of reaction conditions, substrate scope, functional group tolerance and yields. Synthetic applications of the present method are demonstrated by preparing α-aryl indoles and 3-aryl isocoumarin from styryl ethers.

Diarylrhodates as promising active catalysts for the arylation of vinyl ethers with grignard reagents

Iwasaki, Takanori,Miyata, Yoshinori,Akimoto, Ryo,Fujii, Yuuki,Kuniyasu, Hitoshi,Kambe, Nobuaki

supporting information, p. 9260 - 9263 (2014/07/21)

Anionic diarylrhodium complexes, generated by reacting [RhCl(cod)] 2 with 2 equiv of aryl Grignard reagents, were found to be effective active catalysts in cross-coupling reactions of vinyl ethers with aryl Grignard reagents, giving rise to the production of vinyl arenes. In this catalytic system, vinyl-O bonds were preferably cleaved over Ar-O or Ar-Br bonds. A lithium rhodate complex was isolated, and its crystal structure was determined by X-ray crystallography.

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