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95409-25-9

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95409-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 95409-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,5,4,0 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 95409-25:
(7*9)+(6*5)+(5*4)+(4*0)+(3*9)+(2*2)+(1*5)=149
149 % 10 = 9
So 95409-25-9 is a valid CAS Registry Number.

95409-25-9Relevant academic research and scientific papers

Copper-Catalyzed Asymmetric Silylation of Propargyl Dichlorides: Access to Enantioenriched Functionalized Allenylsilanes

Liu, Zheng-Li,Yang, Chao,Xue, Qi-Yan,Zhao, Meng,Shan, Cui-Cui,Xu, Yun-He,Loh, Teck-Peng

supporting information, p. 16538 - 16542 (2019/11/11)

A copper-catalyzed silylation of propargyl dichlorides was developed to access chloro-substituted allenylsilanes under mild reaction conditions. Moreover, enantioenriched chloro-substituted allenylsilanes can be synthesized in moderate to high yields and good enantioselectivities with this protocol.

Gold catalysis in stereoselective natural product synthesis: (+)-linalool oxide, (-)-isocyclocapitelline, and (-)-isochrysotricine

Volz, Frank,Wadman, Sipke H.,Hoffmann-R?der, Anja,Krause, Norbert

experimental part, p. 1902 - 1910 (2009/06/20)

A stereoselective synthesis of the tetrahydrofuran-containing natural products (2S,5R)-(+)-linalool oxide (1), (-)-isocyclocapitelline (2), and (-)-isochrysotricine (3) is reported. Key steps are the copper-mediated SN2′-substitution of proparg

Asymmetric direct aldol reactions of acetoacetals catalyzed by a simple chiral primary amine

Luo, Sanzhong,Qiao, Yupu,Zhang, Long,Li, Jiuyuan,Li, Xin,Cheng, Jin-Pei

supporting information; experimental part, p. 9521 - 9523 (2010/03/24)

(Chemical Equation Presented) An asymmetric direct aldol reaction of acetoacetals is described. Under the catalysis of a simple chiral primary amine, the direct aldol reactions of acetoacetals occur exclusively on the γ-position to give vinylogous-type al

Furanose Synthesis via Regioselective Dihydroxylation of 1-Silyloxy-1,3-dienes: Application to the Furanose Unit of 4-epi-Hygromycin A

Armstrong, Alan,Gethin, David M.,Wheelhouse, Christopher J.

, p. 350 - 352 (2007/10/03)

Asymmetric dihydroxylation of a 1-silyloxy-1,3-diene is shown to occur regioselectively on the non-oxygenated alkene. Second dihydroxylation is complicated by over-oxidation to the dione and epimerisation of reaction products. However, subsequent manipula

Facile cleavage of triethylsilyl (TES) ethers using o-lodoxybenzoic acid (IBX) without affecting tert-butyldimethylsilyl (TBS) ethers

Wu, Yikang,Huang, Jia-Hui,Shen, Xin,Hu, Qi,Tang, Chao-Jun,Li, Liang

, p. 2141 - 2144 (2007/10/03)

(matrix presented) In DMSO cleavage of triethylsilyl (TES) ethers by o-iodoxybenzoic acid (IBX) was significantly faster than cleavage of tert-butyldimethylsilyl (TBS) ethers or further oxidation into carbonyl compounds. In most cases, TES protecting groups be removed in good to excellent yields within 1 h, whereas similar TBS protecting groups remained intact under the same conditions. The procedure also could be adapted for direct one-pot conversion of TES ethers into carbonyl compounds.

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