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176041-42-2

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176041-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176041-42-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,0,4 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 176041-42:
(8*1)+(7*7)+(6*6)+(5*0)+(4*4)+(3*1)+(2*4)+(1*2)=122
122 % 10 = 2
So 176041-42-2 is a valid CAS Registry Number.

176041-42-2Relevant articles and documents

Comparative studies of palladium and copper-catalysed γ-arylation of silyloxy furans with diaryliodonium salts

Alexander, Taylor S.,Clay, Travis J.,Maldonado, Bryan,Nguyen, Johny M.,Martin, David B.C.

, p. 2229 - 2238 (2019)

The γ-arylation of substituted silyl-activated butenolides has been studied using a broad scope of unsymmetrical hypervalent diaryliodonium salts via a palladium- or copper-catalysed coupling reaction, yielding interesting reactivity trends. The mild catalytic conditions and coupling partner variability provide access to synthetically useful building blocks toward the pursuit of aryl-lactone containing natural products and allows for facile diversification.

Synthesis of Penta-2,4-dien-1-imines and 1,2-Dihydropyridines by Rhodium-Catalyzed Reaction of N-Sulfonyl-1,2,3-triazoles with 2-(Siloxy)furans

Funakoshi, Yuuta,Miura, Tomoya,Murakami, Masahiro

supporting information, p. 6284 - 6287 (2016/12/23)

A rhodium(II)-catalyzed reaction of N-sulfonyl-1,2,3-triazoles with 2-(siloxy)furans is reported. Either open-chain penta-2,4-dien-1-imines or cyclic 1,2-dihydropyridines are selectively obtained depending on the ligand on rhodium(II).

Diastereoselective addition of nitro compounds to α,β- unsaturated γ-butyrolactones

Rosso, Giovanni B.,Pilli, Ronaldo A.

, p. 185 - 188 (2007/10/03)

Herein, we report our results on the diastereoselective addition of nitro compounds to α,β-unsaturated γ-butyrolactones, which afforded the corresponding Michael adducts 9-17 in moderate to good yields and good to excellent diastereoisomeric ratio. A one-pot conversion of α,β- unsaturated γ-butyrolactones 7 and 8 to the corresponding trisubstituted keto-γ-butyrolactones 24 and 25 via a tandem Michael-Nef protocol is also described.

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