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81417-97-2

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81417-97-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81417-97-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,4,1 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81417-97:
(7*8)+(6*1)+(5*4)+(4*1)+(3*7)+(2*9)+(1*7)=132
132 % 10 = 2
So 81417-97-2 is a valid CAS Registry Number.

81417-97-2Relevant articles and documents

Organocatalytic synthesis of polysubstituted tetrahydrofurans from alkenes

Theodorou, Alexis,Kokotos, Christoforos G.

, p. 670 - 674 (2017)

A novel, organocatalytic and environmentally friendly protocol for the synthesis of polysubstituted tetrahydrofurans from trivial starting materials has been described. By employing 2,2,2-trifluoroacetophenone-mediated oxidation, which utilizes H2O2 as a green oxidant, we introduce a sustainable procedure that embraces the principles of green chemistry for the production of substituted tetrahydrofurans in high to excellent yields and tolerates a wide range of substitution patterns.

Indium-copper and indium-silver mediated Barbier-Grignard-type alkylation reaction of aldehydes using unactivated alkyl halides in water

Shen, Zhi-Liang,Yeo, Yan-Lin,Loh, Teck-Peng

, p. 3922 - 3924 (2008/09/19)

(Chemical Equation Presented) An efficient method has been developed for the Barbier-Grignard-type alkylation reaction of aldehydes (including aliphatic version) using unactivated alkyl halides in water in the presence of an In/CuI/I2 or In/AgI/I2 system. The reactions proceeded more efficiently in water than in organic solvent. In, CuI or AgI, and I 2 were all essential for the efficient progress of the reactions. A radical-type reaction mechanism was studied and proposed by using 4-pentenal as substrate.

A facile method for synthesis of 5-hydroxypentene via sonochemical barbier reaction

Lee, Adam Shih-Yuan,Tsao, Kuo-Wei,Chang, Yu-Ting,Chu, Shu-Fang

, p. 519 - 524 (2008/02/10)

A series of 5-hydroxypentenes was synthesized from the reaction mixture of Mg powder, 1,2-dibromoethane, 4-bromobutene and aldehydes in THF under ultrasound. This sonochemical Barbier reaction provides a simple and alternative method for preparation of 5-hydroxypentene instead of the allylating reagent with epoxide.

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