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128316-23-4

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128316-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128316-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,3,1 and 6 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128316-23:
(8*1)+(7*2)+(6*8)+(5*3)+(4*1)+(3*6)+(2*2)+(1*3)=114
114 % 10 = 4
So 128316-23-4 is a valid CAS Registry Number.

128316-23-4Downstream Products

128316-23-4Relevant articles and documents

UV light-mediated difunctionalization of alkenes through aroyl radical addition/1,4-/1,2-Aryl shift cascade reactions

Zheng, Lewei,Huang, Hongli,Yang, Chao,Xia, Wujiong

supporting information, p. 1034 - 1037 (2015/03/30)

UV light-mediated difunctionalization of alkenes through an aroyl radical addition/1,4-/1,2-aryl shift has been described. The resulted aroyl radical from a photocleavage reaction added to acrylamide compounds followed by cyclization led to the formation of oxindoles, whereas the addition to cinnamic amides aroused a unique 1,4-aryl shift reaction. Furthermore, the difunctionalization of alkenes of prop-2-en-1-ols was also achieved through aroyl radical addition and a sequential 1,2-aryl shift cascade reaction.

CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES XLVII. REACTION OF N-ARYLAROYLPYRUVAMIDES WITH DIPHENYLDIAZOMETHANE

Brigadnova, E. V.,Maslivets, A. M.,Andreichikov, Yu. S.

, p. 274 - 277 (2007/10/02)

N-Aryl-4-aryl-3-diphenylmethyl-2,4-dioxobutyramides were obtained from N-arylaroylpyruvamides and diphenyldiazomethane.At 110 deg C in toluene they were converted into N-aryl-3-aryl-2-diphenylmethyl-3-oxopropionamides.By boiling in acetic acid they were converted into 1,5-diaryl-4-diphenylmethyl-2,3-dihydro-2,3-pyrrolediones.

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