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69808-71-5

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69808-71-5 Usage

Synthesis Reference(s)

Journal of the American Chemical Society, 73, p. 4139, 1951 DOI: 10.1021/ja01153a026

Check Digit Verification of cas no

The CAS Registry Mumber 69808-71-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,8,0 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69808-71:
(7*6)+(6*9)+(5*8)+(4*0)+(3*8)+(2*7)+(1*1)=175
175 % 10 = 5
So 69808-71-5 is a valid CAS Registry Number.

69808-71-5Relevant articles and documents

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Pigulla,Roeder

, p. 12,15 (1979)

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Cu(OAc)2-Promoted Oxidative Cross-Dehydrogenative Coupling Reaction of α-Acylmethyl Malonates with Indole Derivatives to Access 3-Functionalized Indoles and Polycyclic Indoles

Zhou, Li-Jin,Wang, Kun,Guan, Hong-Rong,Zheng, An-Qi,Yang, Hai-Tao,Miao, Chun-Bao

, p. 7925 - 7938 (2020/07/25)

A Cu(OAc)2-promoted oxidative cross-dehydrogenative coupling reaction of α-acylmethyl malonates with indole derivatives was developed. In the case of indoles, the regioselective coupling products were formed through a sequential dehydrogenation-addition-dehydrogenation process. When a second nucleophilic center was located in the 2-position of indoles, further successive nucleophilic cyclization occurred to give polycyclic indole derivatives. The Cu(OAc)2 was proved to act as not only an oxidant but also a catalyst.

Total synthesis and structural revision of a mangrove alkaloid

Green, Michael T.,Peczkowski, Gary R.,Al-Ani, Aneesa J.,Benjamin, Sophie L.,Simpkins, Nigel S.,Jones, Alan M.

, p. 48754 - 48758 (2017/11/06)

We report the total synthesis of an alkaloid isolated from the mangrove fungi Hypocrea virens, based on the originally claimed structure, via a photochemical sequence. Inconsistencies between data sets led to a revision of the proposed structure followed by a concise synthetic sequence to deliver the revised natural product.

Synthesis of heteroarylogous 1H-indole-3-carboxamidines via a three-component interrupted Ugi reaction

La Spisa, Fabio,Meneghetti, Fiorella,Pozzi, Beatrice,Tron, Gian Cesare

, p. 489 - 496 (2015/02/19)

A novel one-pot multicomponent synthesis of heteroarylogous 1H-indole-3-carboxamidines starting from readily available N-alkyl-N-(1H-indol-2-ylmethyl)amines, isocyanides, and carbonyl compounds is reported. The strategy exploits the ability of the indole nucleus to interrupt the classical Ugi reaction, by intercepting the nascent nitrilium ion.

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