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1188296-81-2

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1188296-81-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1188296-81-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,8,2,9 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1188296-81:
(9*1)+(8*1)+(7*8)+(6*8)+(5*2)+(4*9)+(3*6)+(2*8)+(1*1)=202
202 % 10 = 2
So 1188296-81-2 is a valid CAS Registry Number.

1188296-81-2Relevant articles and documents

Asymmetric addition of aryloxy ethynyl lithium derivatives to N-sulfinyl imines

Verrier, Charlie,Carret, Sebastien,Poisson, Jean-Francois

, p. 455 - 460 (2013)

Aryloxy ethynyl lithium species can be generated in diethyl ether and efficiently added to aliphatic and aromatic N-sulfinyl imines in THF, affording aryloxypropargyl sulfinamides in good yield, and in most cases high diastereoselectivity. The diastereose

Alkynoxy-directed C-H functionalizations: Palladium(0)-catalyzed annulations of alkynyl aryl ethers with alkynes

Minami, Yasunori,Shiraishi, Yuki,Kodama, Tatsuro,Kanda, Mayuko,Yamada, Kotomi,Anami, Tomohiro,Hiyama, Tamejiro

, p. 1388 - 1403 (2015/11/16)

Palladium(0)-catalyzed insertion/annulation sequence between aryl silylethynyl ethers and internal alkynes was found to proceed through activation of ortho-C-H bonds assisted by alkynoxy groups and gave stereoselectively (Z)-2-silylmethylenechromenes. The

An Ireland-Claisen rearrangement/RCM based approach for the construction of the EF-ring of ciguatoxin 3C

Nogoshi, Keisuke,Domon, Daisuke,Fujiwara, Kenshu,Kawamura, Natsumi,Katoono, Ryo,Kawai, Hidetoshi,Suzuki, Takanori

, p. 676 - 680 (2013/02/23)

The EF-ring of ciguatoxin 3C, a marine toxin from the dinoflagellate Gambierdiscus toxicus, was stereoselectively synthesized by iterative use of a cyclic ether formation process based on chirality-transferring Ireland-Claisen rearrangement and ring-closing olefin metathesis.

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