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83977-12-2

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83977-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83977-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,7 and 7 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83977-12:
(7*8)+(6*3)+(5*9)+(4*7)+(3*7)+(2*1)+(1*2)=172
172 % 10 = 2
So 83977-12-2 is a valid CAS Registry Number.

83977-12-2Relevant articles and documents

Synthesis and cytotoxic properties of some cyclic acetals of diols and their dichlorocyclopropyl derivatives

Raskil’dina,Kuzmina, U. Sh.,Dzhumaev, Sh. Sh.,Borisova, Yu. G.,Ishmetova,Vakhitova, Yu. V.,Zlotskii

, p. 475 - 478 (2021/04/09)

Cyclic acetals of ethylene glycol, cis-but-2-ene-1,4-diol and their dichlorocyclopropyl derivatives were synthesized. Compounds simultaneously containing the gem-dichlorocyclopropane and 1,3-dioxacycloalkane cycles are shown to exhibit cytotoxic activity against the HEK293, SH-SY5Y, HepG2, MCF-7, A549, and Jurkat cell lines. The obtained results open up prospects for further studies of antitumor activity of 2-(2,2-dichlorocyclopropyl)-2-ethyl-1,3-dioxolane.

Photoredox Oxo-C(sp3)-H Bond Functionalization via in Situ Cu(I)-Acetylide Catalysis

Song, Zi-Qi,Liu, Zan,Gan, Qi-Chao,Lei, Tao,Tung, Chen-Ho,Wu, Li-Zhu

supporting information, p. 832 - 836 (2020/01/31)

A unified strategy for the synthesis of 2-vinyl heterocycles is reported. With visible light irradiation, simple and cheap CuCl is able to functionalize a terminal alkyne, giving Cu(I)-acetylide in situ. Unlike the case of noble metals or organic dye photocatalysts, this critical Cu(I)-acetylide not only activates the C-H bond of terminal alkynes but also serves as a photocatalyst to achieve varieties of 2-vinyl heterocycles in good to excellent yields, even for large scale and late-stage functionalization of natural product.

NiCl2-catalyzed radical cross decarboxylative coupling between arylpropiolic acids and cyclic ethers

Wan, Zi-juan,Wang, Jin-yuan,Luo, Jun

supporting information, p. 613 - 616 (2019/01/29)

A direct alkenylation of cyclic ethers via radical cross decarboxylative coupling process catalyzed by NiCl2 and using DTBP as radical initiator and oxidant was developed. A variety of arylpropiolic acids and cyclic ethers were transformed into the corresponding 2-arylvinyl cyclic ethers in moderate to excellent yields. Mechanistic experiments were conducted to determine the nature of the reaction intermediates, and a plausible reaction mechanism involving NiCl2-promoted radical process was proposed.

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