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64449-33-8

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64449-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 64449-33-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,4,4 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 64449-33:
(7*6)+(6*4)+(5*4)+(4*4)+(3*9)+(2*3)+(1*3)=138
138 % 10 = 8
So 64449-33-8 is a valid CAS Registry Number.

64449-33-8Downstream Products

64449-33-8Relevant articles and documents

Bioinspired Photoredox Benzylation of Quinones

Donzel, Maxime,Elhabiri, Mourad,Davioud-Charvet, Elisabeth

, p. 10055 - 10066 (2021/07/31)

3-Benzylmenadiones were obtained in good yield by using a blue-light-induced photoredox process in the presence of Fe(III), oxygen, and γ-terpinene acting as a hydrogen-atom transfer agent. This methodology is compatible with a wide variety of diversely substituted 1,4-naphthoquinones as well as various cheap, readily available benzyl bromides with excellent functional group tolerance. The benzylation mechanism was investigated and supports a three-step radical cascade with the key involvement of the photogenerated superoxide anion radical.

Synthesis of Vitamin K and Related Naphthoquinones via Demethoxycarbonylative Annulations and a Retro-Wittig Rearrangement

Mal, Dipakranjan,Ghosh, Ketaki,Jana, Supriti

, p. 5800 - 5803 (2015/12/11)

Anionic annulations of 3-nucleofugal phthalides with α-alkyl(aryl)acrylates involving a demethoxycarbonylation provide a succinct synthesis of vitamin K and related naphthoquinones. Also reported is a new cascade reaction stemming from a Cope-retro-Wittig rearrangement. This cascade leads to direct formation of 1-hydroxy-4-prenyloxynaphthalene-2-carboxylates from the corresponding α-prenyl acrylate acceptors.

QUINONE BASED NITRIC OXIDE DONATING COMPOUNDS

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Page/Page column 73-74, (2013/05/21)

The present invention relates to nitric oxide donor compounds having a quinone based structure, to processes for their preparation and to their use in the treatment of pathological conditions where a deficit of NO plays an important role in their pathogenesis.

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