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340696-10-8

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340696-10-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 340696-10-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,0,6,9 and 6 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 340696-10:
(8*3)+(7*4)+(6*0)+(5*6)+(4*9)+(3*6)+(2*1)+(1*0)=138
138 % 10 = 8
So 340696-10-8 is a valid CAS Registry Number.

340696-10-8Relevant articles and documents

Copper-Catalyzed (4+1) Cascade Annulation of Terminal Alkynes with 2-(Tosylmethyl)anilines: Synthesis of 2,3-Disubstituted Indoles

Yan, Xu,Liu, Chun-Fang,An, Xian-Tao,Ge, Xiao-Min,Zhang, Qing,Pang, Lin-Han,Bao, Xu,Fan, Chun-An

supporting information, p. 8905 - 8909 (2021/11/24)

A novel strategy based on Cu-catalyzed (4+1) cascade annulation of terminal alkynes as one-carbon synthons with 2-(tosylmethyl)anilines has been developed for the expeditious synthesis of 2,3-disubstituted indoles, in which in situ generations of aza-o-quinone methides and alkynyl-copper(I) species are involved. This annulation provides an effective method for the assembly of synthetically and structurally interesting 2,3-disubstituted indoles.

Diastereoselective synthesis of 2,4-substituted tetrahydroquinolines via hf(otf)4-catalyzed substitution/cyclization of 2-aminobenzyl alcohols with styrenes

Noji, Masahiro,Kadowaki, Hiroto,Kubota, Yuuki,Yoshida, Tomomi,Saito, Noriko,Yamaguchi, Subaru,Ohata, Ren,Ishii, Keitaro,Takanami, Toshikatsu

, p. 1041 - 1073 (2017/07/27)

An efficient and convenient stereoselective synthetic approach to 2,4-substituted 1,2,3,4-tetrahydroquinoline has been developed. This catalytic procedure involves a sequential reaction of 2-aminobenzyl alcohol with styrenes in the presence of Hf(OTf)4 ca

Broensted acid-catalyzed one-pot synthesis of indoles from o-aminobenzyl alcohols and furans

Kuznetsov, Alexey,Makarov, Anton,Rubtsov, Aleksandr E.,Butin, Alexander V.,Gevorgyan, Vladimir

, p. 12144 - 12153 (2014/01/06)

Broensted acid-catalyzed one-pot synthesis of indoles from o-aminobenzyl alcohols and furans has been developed. This method operates via the in situ formation of aminobenzylfuran, followed by its recyclization into the indole core. The method proved to be efficient for substrates possessing different functional groups, including -OMe, -CO2Cy, and -Br. The resulting indoles can easily be transformed into diverse scaffolds, including 2,3- and 1,2-fused indoles, and indoles possessing an α,β-unsaturated ketone moiety at the C-2 position.

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