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53067-91-7

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53067-91-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53067-91-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,0,6 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53067-91:
(7*5)+(6*3)+(5*0)+(4*6)+(3*7)+(2*9)+(1*1)=117
117 % 10 = 7
So 53067-91-7 is a valid CAS Registry Number.

53067-91-7Relevant articles and documents

Acylalkylation of Arynes Generated from o-Iodoaryl Triflates with Hydrosilanes and Cesium Fluoride

Minoshima, Mai,Uchida, Keisuke,Nakamura, Yu,Hosoya, Takamitsu,Yoshida, Suguru

supporting information, p. 1868 - 1873 (2021/03/08)

An efficient method to generate aryne intermediates from o-iodoaryl triflates triggered by triethylsilane and cesium fluoride is disclosed. This method realized the acylalkylation of arynes using easily available o-iodoaryl triflate-type precursors, which was difficult when using conventional nucleophilic activators. A wide range of (hetero)arenes including various fused benzothiazoles were successfully synthesized from o-iodoaryl triflates by virtue of their good accessibility and divergent transformations of aryne intermediates.

Rhodium(III)-catalyzed chemodivergent annulations between: N-methoxybenzamides and sulfoxonium ylides via C-H activation

Xu, Youwei,Zheng, Guangfan,Yang, Xifa,Li, Xingwei

, p. 670 - 673 (2018/01/28)

Chemodivergent and redox-neutral annulations between N-methoxybenzamides and sulfoxonium ylides have been realized via Rh(iii)-catalyzed C-H activation. The sulfoxonium ylide acts as a carbene precursor, and coupling occurs under acid-controlled condition

Silver-Catalyzed Cyclization of ortho-Carbonylarylacetylenols for the Synthesis of Dihydronaphthofurans

Akkachairin, Bhornrawin,Tummatorn, Jumreang,Supantanapong, Nantamon,Nimnual, Phongprapan,Thongsornkleeb, Charnsak,Ruchirawat, Somsak

, p. 3727 - 3740 (2017/04/11)

ortho-Carbonylarylacetylenols have been employed for the synthesis of dihydronaphthofurans via AgTFA-catalyzed annulation reaction. A broad range of substrates both ortho-keto- and ortho-formylarylacetylenols could be employed in this transformation providing the desired products in good yields. However, the reaction pathways of these two substrates are different. The reaction of the ketone precursors could directly lead to the desired products in a single operation while the reaction of the aldehyde precursors required a one-pot two-step approach, without isolation of the bicyclic acetal intermediates. In addition, this method was also successfully used for the synthesis of dihydronaphthopyrans in very good yields.

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