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62995-59-9

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62995-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 62995-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,2,9,9 and 5 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 62995-59:
(7*6)+(6*2)+(5*9)+(4*9)+(3*5)+(2*5)+(1*9)=169
169 % 10 = 9
So 62995-59-9 is a valid CAS Registry Number.
InChI:InChI=1/C12H11NO3/c1-7-10(11(14)12(15)16-2)8-5-3-4-6-9(8)13-7/h3-6,13H,1-2H3

62995-59-9Relevant articles and documents

Carbene-Catalyzed Construction of Carbazoles from Enals and 2-Methyl-3-oxoacetate Indoles

Liu, Dehai,Gao, Yaru,Huang, Jie,Fu, Zhenqian,Huang, Wei

, p. 14210 - 14217 (2018)

Direct and rapid construction of carbazoles has been successfully developed via carbene-catalyzed oxidative formal [4 + 2] annulation of enals with 2-methyl-3-oxoacetate indoles. This metal-free reaction features a broad substrate scope, features good functional-group tolerance, proceeds under mild conditions, and can be easily scaled up.

An environmentally friendly protocol for oxidative halocyclization of tryptamine and tryptophol derivatives

Xu, Jun,Tong, Rongbiao

supporting information, p. 2952 - 2956 (2017/07/24)

An environmentally friendly and efficient protocol (KX/oxone) for oxidative halocyclization of tryptamine/tryptophol derivatives was developed and demonstrated with 28 examples and concise total synthesis of cyclotryptamine alkaloid protubonines A and B. The distinct advantage of this protocol over all previous methods is that no organic byproduct is generated from a halogenating agent or oxidant, thus greatly reducing the environmental impact of halocyclization and facilitating the post-reaction purification.

Dearomatization of tryptophols via a vanadium-catalyzed asymmetric epoxidation and ring-opening cascade

Han, Long,Liu, Chuan,Zhang, Wei,Shi, Xiao-Xin,You, Shu-Li

supporting information, p. 1231 - 1233 (2014/02/14)

An enantioselective epoxidation of tryptophols followed by an intramolecular epoxide opening reaction was realized by chiral vanadium catalysts derived from C2 symmetric bis-hydroxamic acid (BHA) ligands. 3a-Hydroxyfuroindoline derivatives with up to 89% yield and 90% ee were obtained under mild reaction conditions.

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