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145285-56-9

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145285-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 145285-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,8 and 5 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 145285-56:
(8*1)+(7*4)+(6*5)+(5*2)+(4*8)+(3*5)+(2*5)+(1*6)=139
139 % 10 = 9
So 145285-56-9 is a valid CAS Registry Number.

145285-56-9Relevant articles and documents

Asymmetric dihydroxylation route to a dipeptide isostere of a protease inhibitor: Enantioselective synthesis of the core unit of ritonavir

Ghosh, Arun K.,Shin, Dongwoo,Mathivanan, Packiarajan

, p. 1025 - 1026 (1999)

An enantioselective synthesis of the dipeptide isostere of ritonavir has been accomplished utilizing Sharpless asymmetric hydroxylation as the key step.

NiH-Catalyzed Proximal-Selective Hydroamination of Unactivated Alkenes

Jeon, Jinwon,Lee, Changseok,Seo, Huiyeong,Hong, Sungwoo

, p. 20470 - 20480 (2020/11/27)

Reported herein is a modular, NiH-catalyzed system capable of proximal-selective hydroamination of unactivated alkenes with diverse amine sources. The key to the successful implementation of this approach is the promotion of NiH insertion into even highly substituted olefins via coordination of the bidentate directing group to the nickel complex. A wide range of primary and secondary amines can be installed in both internal and terminal unactivated alkenes with excellent regiocontrol under the optimized reaction conditions. This protocol is flexible and general for the preparation of a variety of valuable β- and γ-amino acid building blocks that would otherwise be difficult to synthesize. The utility of this transformation was further demonstrated by the site-selective late-stage modification of complex and medicinally relevant molecules. Combined experimental and computational studies illuminate the detailed reaction mechanism.

Ring-Opening of Vinylcyclopropane-1,1-dicarboxylates by Boronic Acids under Ligandless Palladium Catalysis in Neat Water

Yin, JieXiang,Hyland, Christopher J. T.

, p. 6529 - 6536 (2015/10/06)

We report a highly efficient ring-opening reaction of vinylcyclopropanes by boronic acids in water, using palladium nanoparticles formed from Pd(OAc)2 under ligandless conditions. Unsubstituted vinylcyclopropanes provide linear addition products with high selectivity, while a switch in regioselectivity to branched products is observed for aryl-substituted vinylcyclopropanes.

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