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136672-24-7

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136672-24-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136672-24-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,7 and 2 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 136672-24:
(8*1)+(7*3)+(6*6)+(5*6)+(4*7)+(3*2)+(2*2)+(1*4)=137
137 % 10 = 7
So 136672-24-7 is a valid CAS Registry Number.

136672-24-7Downstream Products

136672-24-7Relevant articles and documents

Benzylic C(sp3)-C(sp2) cross-coupling of indoles enabled by oxidative radical generation and nickel catalysis

Kim, Weonjeong,Koo, Jangwoo,Lee, Hong Geun

, p. 4119 - 4125 (2021/04/06)

A mechanistically unique functionalization strategy for a benzylic C(sp3)-H bond has been developed based on the facile oxidation event of indole substrates. This novel pathway was initiated by efficient radical generation at the benzylic position of the substrate, with subsequent transition metal catalysis to complete the overall transformation. Ultimately, an aryl or an acyl group could be effectively delivered from an aryl (pseudo)halide or an acid anhydride coupling partner, respectively. The developed method utilizes mild conditions and exhibits a wide substrate scope for both substituted indoles and C(sp2)-based reaction counterparts. Mechanistic studies have shown that competitive hydrogen atom transfer (HAT) processes, which are frequently encountered in conventional methods, are not involved in the product formation process of the developed strategy.

Intramolecular Addition of a Dimethylamino C(sp 3)-H Bond across C-C Triple Bonds Using IrCl(DTBM-SEGPHOS)(ethylene) Catalyst: Synthesis of Indoles from 2-Alkynyl- N -methylanilines

Ohmura, Toshimichi,Yagi, Kaito,Torigoe, Takeru,Suginome, Michinori

, p. 3057 - 3064 (2021/06/28)

Intramolecular addition of a C(sp 3)-H bond of the dimethylamino group across the C-C triple bond in 2-alkynyl- N, N -dimethylanilines is effectively catalyzed by a new iridium complex, IrCl(DTBM-SEGPHOS)(C 2H 4), in mesitylene at 150 °C. The intramolecular C(sp 3)-H addition is followed by double-bond isomerization to afford 3-substituted indoles in good to high yields.

Catalytic Tandem and One-Pot Dehydrogenation-Alkylation and -Insertion Reactions of Saturated Hydrocarbons with Alcohols and Alkenes

Kim, Junghwa,Pannilawithana, Nuwan,Yi, Chae S.

, p. 8395 - 8398 (2016/12/16)

The ruthenium-hydride catalyst has been successfully used for the tandem sp3 C-H dehydrogenation-alkylation reaction of saturated hydrocarbon substrates with alcohols to form the alkyl-substituted alkene and arene products. The analogous one-pot dehydrogenation-insertion of saturated ketones with alkenes and dienes directly yielded synthetically useful 2-alkylphenol and benzopyran products in a highly regio- and stereoselective manner without forming any wasteful byproducts. (Chemical Equation Presented).

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