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18212-32-3

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18212-32-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18212-32-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,2,1 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 18212-32:
(7*1)+(6*8)+(5*2)+(4*1)+(3*2)+(2*3)+(1*2)=83
83 % 10 = 3
So 18212-32-3 is a valid CAS Registry Number.

18212-32-3Relevant articles and documents

HETEROARYL PLASMA KALLIKREIN INHIBITORS

-

, (2021/03/19)

The present invention provides compounds and compositions thereof which are useful as inhibitors of plasma kallikrein and which exhibit desirable characteristics for the same.

Synthesis of Isothiochroman-3-ones via Metal-Free Oxidative Cyclization of Alkynyl Thioethers

Zhang, Ying-Qi,Zhu, Xin-Qi,Chen, Yang-Bo,Tan, Tong-De,Yang, Ming-Yang,Ye, Long-Wu

, p. 7721 - 7725 (2019/01/03)

A novel Br?nsted acid-catalyzed oxidative C-H functionalization of alkynyl thioethers has been developed. This method allows the practical synthesis of valuable isothiochroman-3-ones in mostly moderate to good yields under mild reaction conditions and features a broad substrate scope and wide functional group tolerance. Moreover, this metal-free oxidation can also be used to promote formal N-H insertion involving an unexpected 1,2-sulfur migration, affording useful 1,4-benzothiazin-3-ones.

Divergent Reactivity of Thioalkynes in Lewis Acid Catalyzed Annulations with Donor–Acceptor Cyclopropanes

Racine, Sophie,Hegedüs, Bence,Scopelliti, Rosario,Waser, Jér?me

supporting information, p. 11997 - 12001 (2016/08/16)

Efficient methods for the convergent synthesis of (poly)cyclic scaffolds are urgently needed in synthetic and medicinal chemistry. Herein, we describe new annulation reactions of thioalkynes with phthalimide-substituted donor–acceptor cyclopropanes, which gave access to highly substituted cyclopentenes and polycyclic ring systems. With silyl-thioalkynes, the Lewis acid catalyzed [3+2] annulation reaction with donor–acceptor cyclopropanes took place to afford 1-thio-cyclopenten-3-amines. On the other hand, an unprecedented polycyclic compound was formed with alkyl-thioalkynes through a reaction pathway directly involving the phthalimide group. The two transformations proceeded in good yields and tolerated a large variety of functional groups.

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