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142039-30-3

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142039-30-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142039-30-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,3 and 9 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 142039-30:
(8*1)+(7*4)+(6*2)+(5*0)+(4*3)+(3*9)+(2*3)+(1*0)=93
93 % 10 = 3
So 142039-30-3 is a valid CAS Registry Number.

142039-30-3Downstream Products

142039-30-3Relevant articles and documents

Cu-mediated or metal-free alkylation of gem-dibromoalkenes with tertiary, secondary and primary alkyl Grignard reagents

Deng, Yupian,Zhang, Xuxue,Liu, Chuan,Cao, Song

, (2021/01/18)

A novel copper-mediated or transition-metal-free alkylation of gem-dibromoalkenes with tertiary, secondary and primary alkyl Grignard reagents was described. The outcomes of these reactions were found to be highly dependent on the reaction conditions and

Metal-Free Oxidative Decarbonylative Hydroalkylation of Alkynes with Secondary and Tertiary Alkyl Aldehydes

Ouyang, Xuan-Hui,Song, Ren-Jie,Liu, Bang,Li, Jin-Heng

, p. 1903 - 1909 (2016/07/06)

A new, metal-free, radical-mediated oxidative decarbonylative hydroalkylation of various alkynes with secondary and tertiary alkyl aldehydes using di-tert-butyl peroxide (DTBP) as oxidant is presented. This method enables the simultaneous formation of a C C bond and a C H bond through a sequence of decarbonylation, radical addition and protonation, and provides a straightforward route for transforming alkynes into alkenes with high compatibility with both alkynes and alkyl aldehydes. (Figure presented.) .

Silver-catalyzed regioselective carbomagnesiation of alkynes with alkyl halides and Grignard reagents

Kambe, Nobuaki,Moriwaki, Yuusuke,Fujii, Yuuki,Iwasaki, Takanori,Terao, Jun

supporting information; experimental part, p. 4656 - 4659 (2011/10/18)

A silver-catalyzed carbomagnesiation of alkynes with alkyl halides and Grignard reagents afforded alkenyl Grignard reagents regioselectively, where the alkyl group of the alkyl halide, but not that of the Grignard reagent, was introduced into the alkyne.

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