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6879-55-6

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6879-55-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6879-55-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,7 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6879-55:
(6*6)+(5*8)+(4*7)+(3*9)+(2*5)+(1*5)=146
146 % 10 = 6
So 6879-55-6 is a valid CAS Registry Number.

6879-55-6Downstream Products

6879-55-6Relevant articles and documents

C-H functionalization/asymmetric michael addition cascade enabled by relay catalysis: Metal carbenoid used for C-C bond formation

Chen, Dian-Feng,Zhao, Feng,Hu, Yue,Gong, Liu-Zhu

, p. 10763 - 10767 (2015)

A combination of either ruthenium(II) or rhodium(II) complexes and quinine-derived squaramide enables 3-diazooxindoles, indoles, and nitroalkenes to undergo highly efficient asymmetric three-component reactions, thus affording optically active 3,3′-bis(in

Dielectrophilic Allenic Ketone-Enabled [4 + 2] Annulation with 3,3'-Bisoxindoles: Enantioselective Creation of Two Contiguous Quaternary Stereogenic Centers

Tang, Xiaodong,Tan, Chuan Xiang Alvin,Chan, Wai-Lun,Zhang, Fuhao,Zheng, Wenrui,Lu, Yixin

, p. 1361 - 1367 (2021/02/01)

We introduced a type of allenic ketone as a dielectrophilic C4 synthon in phosphine-mediated reactions. The high electrophilicity of the advanced intermediates created upon phosphine activation empowered the utilization of 3,3′-bis-oxindoles as a two-carbon reaction partner in a highly enantioselective [4 + 2] annulation, allowing for facile creation of spirocyclic bisindoline structures containing two contiguous quaternary stereogenic centers. Synthetic manipulations of the [4 + 2] annulation product led to concise total synthesis of (-)-folicanthine.

Unified synthesis of (-)-folicanthine and (-)-ditryptophenaline enabled by a room temperature nickel-mediated reductive dimerization

Luo, Long,Zhang, Jian-Jian,Ling, Wei-Jian,Shao, Yong-Liang,Wang, Ya-Wen,Peng, Yu

, p. 1908 - 1916 (2014/07/22)

A Ni·Phen-mediated reductive homocoupling of an optically active tertiary bromide has been efficiently achieved after the systematic screen of reaction conditions including ligands. This key step establishes sterically hindered vicinal quaternary stereocenters embedded in natural bispyrrolo[2,3-b]indoline alkaloids, thus enabling to realize the first asymmetric total synthesis of (-)-folicanthine via the detailed investigation of a challenging double decarboxylation. Notably, the concise synthesis of diketopiperazine alkaloid (-)-ditryptophenaline was also completed from the common dimeric intermediate. Georg Thieme Verlag Stuttgart New York.

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