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1233144-56-3

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1233144-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1233144-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,3,1,4 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1233144-56:
(9*1)+(8*2)+(7*3)+(6*3)+(5*1)+(4*4)+(3*4)+(2*5)+(1*6)=113
113 % 10 = 3
So 1233144-56-3 is a valid CAS Registry Number.

1233144-56-3Relevant articles and documents

S,O-ligand-promoted palladium-catalyzed C–H olefination of arenes with allylic substrates

Naksomboon, Kananat,álvarez-Casao, Yolanda,Uiterweerd, Michiel,Westerveld, Nick,Maciá, Beatriz,Fernández-Ibá?ez, M. ángeles

supporting information, p. 379 - 382 (2017/12/28)

An efficient catalytic system for the C–H olefination of arenes with different allylic substrates is reported. The catalytic system is based on Pd(OAc)2 and a readily accessible bidentate S,O-ligand. The methodology shows high activity with a wide range of arenes, including bulky and, electron-rich and -poor arenes. The applicability of this catalyst is demonstrated in the late-stage functionalization of the complex molecule O-methylestrone.

Triflimide-catalyzed allyl-allyl cross-coupling: A metal-free allylic alkylation

Ding, Feiqing,William, Ronny,Wang, Fei,Liu, Xue-Wei

supporting information; experimental part, p. 8709 - 8711 (2012/10/08)

A highly efficient metal-free intermolecular C(sp3)-C(sp3) allyl-allyl cross-coupling protocol between allyl acetates and allyltrimethylsilanes, which proceeded smoothly in the presence of catalytic triflimide to form 1,5-dienes with good to excellent regioselectivity, has been developed.

Silica gel-mediated rearrangement of allylic acetates. Application to the synthesis of 1,3-enynes

Serra-Muns, Anna,Guerinot, Amandine,Reymond, Sebastien,Cossy, Janine

supporting information; experimental part, p. 4178 - 4180 (2010/08/07)

Silica gel was found to efficiently promote the rearrangement of allylic acetates into their most stable regioisomers under microwave irradiation. The reaction is easy to perform and eco-friendly. This method was applied to the metal-free synthesis of 1,3-enynes.

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