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129823-42-3

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129823-42-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 129823-42-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,8,2 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 129823-42:
(8*1)+(7*2)+(6*9)+(5*8)+(4*2)+(3*3)+(2*4)+(1*2)=143
143 % 10 = 3
So 129823-42-3 is a valid CAS Registry Number.

129823-42-3Relevant articles and documents

Synthesis of β-nitro ketones from geminal bromonitroalkanes and silyl enol ethers by visible light photoredox catalysis

Cao, Haoying,Ma, Shanshan,Feng, Yanhong,Guo, Yawen,Jiao, Peng

supporting information, p. 1780 - 1783 (2022/02/17)

Various β-nitro ketones, including those bearing a β-tertiary carbon, were prepared from geminal bromonitroalkanes and trimethylsilyl enol ethers of a broad range of ketones by visible light photoredox catalysis, which were then easily converted into β-amino ketones, 1,3-amino alcohols, α,β-unsaturated ketones, β-cyano ketones and γ-nitro ketones.

Catalytic Asymmetric Aldol-Type Reactions Using a Chiral (Acyloxy)borane Complex

Ishihara, Kazuaki,Maruyama, Tohru,Mouri, Makoto,Gao, Qingzhi,Furuta,Kyoji,Yamamoto, Hisashi

, p. 3483 - 3491 (2007/10/02)

In the presence of 20 molpercent of a chiral (acyloxy)borane (CAB) complex prepared from BH3*THF and a chiral mono-O-acylated tartaric acid, achiral silyl enol ethers or ketene silyl acetals react with achiral aldehydes to afford the corresponding aldol-t

HIGHLY SELECTIVE, KINETICALLY CONTROLLED ENOLATE FORMATION USING LITHIUM DIALKYLAMIDES IN THE PRESENCE OF TRIMETHYLCHLOROSILANE

Corey, E. J.,Gross, Andrew W.

, p. 495 - 498 (2007/10/02)

The deprotonation of ketones and esters with lithium dialkylamides in the presence of trimethylchlorosilane leads to enhanced selectivity for the kinetically generated enolate.Lithium t-octyl-t-butylamide is shown to be superior to lithium diisopropylamid

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