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80676-78-4

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80676-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 80676-78-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,6,7 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 80676-78:
(7*8)+(6*0)+(5*6)+(4*7)+(3*6)+(2*7)+(1*8)=154
154 % 10 = 4
So 80676-78-4 is a valid CAS Registry Number.

80676-78-4Relevant articles and documents

FLP-Catalyzed Transfer Hydrogenation of Silyl Enol Ethers

Khan, Imtiaz,Reed-Berendt, Benjamin G.,Melen, Rebecca L.,Morrill, Louis C.

supporting information, p. 12356 - 12359 (2018/09/18)

Herein we report the first catalytic transfer hydrogenation of silyl enol ethers. This metal free approach employs tris(pentafluorophenyl)borane and 2,2,6,6-tetramethylpiperidine (TMP) as a commercially available FLP catalyst system and naturally occurring γ-terpinene as a dihydrogen surrogate. A variety of silyl enol ethers undergo efficient hydrogenation, with the reduced products isolated in excellent yields (29 examples, 82 % average yield).

The synthesis of pyrroles and oxazoles based on gold α-imino carbene complexes

Loy, Nicole S. Y.,Choi, Subin,Kim, Sunggak,Park, Cheol-Min

supporting information, p. 7336 - 7339 (2016/06/14)

Cationic gold complexes of α-oximimino carbenes have been identified to react with weak nucleophiles including enol ethers and nitriles. These findings allowed us to develop the highly efficient synthesis of pyrroles and oxazoles.

[4+2]-Annulations of aminocyclobutanes

Waser, Jerome,Perrotta, Daniele,Racine, Sophie,Vuilleumier, Jeremy,De Nanteuil, Florian

supporting information, p. 1030 - 1033 (2015/03/30)

The first [4 + 2]-annulation between aminocyclobutanes and aldehydes to access tetrahydropyranyl amines is reported. With phthalimido cyclobutane dicarboxylates and aromatic aldehydes, tetrahydropyrans were obtained in 53-92% yield and 3:1-17:1 dr using scandium triflate or iron trichloride as catalyst. The use of thymine-or fluorouracil-substituted cyclobutanes gave direct access to six-membered ring nucleoside analogues. Finally, the [4 + 2]-annulation between aminocyclobutanes and enol ethers led to the corresponding cyclohexylamines.

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