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Methanone, (4-methylphenyl)[2-[(trimethylsilyl)ethynyl]phenyl]- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

402476-17-9

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402476-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402476-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,4,7 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 402476-17:
(8*4)+(7*0)+(6*2)+(5*4)+(4*7)+(3*6)+(2*1)+(1*7)=119
119 % 10 = 9
So 402476-17-9 is a valid CAS Registry Number.

402476-17-9Relevant academic research and scientific papers

Cu(I)-Catalyzed Coupling and Cycloisomerization of Diazo Compounds with Terminal Yne-Alkylidenecyclopropanes: Synthesis of Functionalized Cyclopenta[ b]naphthalene Derivatives

Li, Peng-Hua,Yu, Liu-Zhu,Zhang, Xiao-Yu,Shi, Min

supporting information, p. 4516 - 4520 (2018/08/09)

A Cu(I)-catalyzed coupling and cycloisomerization of diazo compounds with terminal yne-alkylidenecyclopropanes (ACPs) has been presented. This reaction starts from the formation of an allenic intermediate in the Cu(I)-catalyzed cross-coupling reaction of a diazo compound with terminal alkyne in yne-tethered ACP and then undergoes a domino cycloisomerization of a 6π-electrocyclization and cyclopropane ring-opening rearrangement to give functionalized cyclopenta[b]naphthalene derivatives in moderate to excellent yields under mild conditions.

Indium(III)-Catalyzed Cyclization of Aromatic 5-Enynamides: Facile Synthesis of 2-Aminonaphthalenes, 2-Amino-1H-indenes, and 2,3-Dihydro-1H-indeno[2,1-b]pyridines

Yeh, Ming-Chang P.,Liang, Chia-Jung,Chen, Hsiao-Feng,Weng, Yu-Ting

, p. 3242 - 3254 (2015/11/03)

Indium(III)-catalyzed cyclization reactions of aromatic 5-enynamides were studied. Indium triflate enabled the efficient synthesis of 2-aminonaphthalenes and 2-amino-1H-indenes from aromatic N-methyl-N-tosyl-ynamides bearing an ortho-vinyl and -isobutenyl group, respectively. The aromatic N-3-arylpropargylynamides bearing an ortho-gem-dihalovinyl subunit underwent a tandem cyclization/carbobromination reaction in the presence of indium tribromide to provide the dibrominated 2,3-dihydro-1H-indeno[2,1-b]pyridine derivatives in good yields.

Reactions of iodinated vinylidene complexes generated from 1-Iodo-1-alkynes and W(CO)5(thf)

Miura, Tomoya,Iwasawa, Nobuharu

, p. 518 - 519 (2007/10/03)

We have succeeded in generating iodinated tungsten vinylidene complexes from 1-iodo-1-alkynes and W(CO)5(thf), and have employed these complexes for two types of synthetically useful reactions, that is, 6π-electrocyclization for o-(iodoethynyl)

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