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69790-20-1

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69790-20-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69790-20-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,7,9 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 69790-20:
(7*6)+(6*9)+(5*7)+(4*9)+(3*0)+(2*2)+(1*0)=171
171 % 10 = 1
So 69790-20-1 is a valid CAS Registry Number.

69790-20-1Relevant articles and documents

Hemilabile Benzyl Ether Enables Γ-C(sp3)-H Carbonylation and Olefination of Alcohols

Tanaka, Keita,Ewing, William R.,Yu, Jin-Quan

supporting information, p. 15494 - 15497 (2019/10/16)

Pd-catalyzed C(sp3)-H activation of alcohol typically shows β-selectivity due to the required distance between the chelating atom in the attached directing group and the targeted C-H bonds. Herein we report the design of a hemilabile directing group which exploits the chelation of a readily removable benzyl ether moiety to direct Γ- or δ-C-H carbonylation and olefination of alcohols. The utility of this approach is also demonstrated in the late-stage C-H functionalization of β-estradiol to rapidly prepare desired analogues that required multi-step syntheses with classical methods.

Iminyl Radical-Triggered Intermolecular Distal C(sp3)-H Heteroarylation via 1,5-Hydrogen-Atom Transfer (HAT) Cascade

Gu, Yu-Rui,Duan, Xin-Hua,Chen, Li,Ma, Zhi-Yong,Gao, Pin,Guo, Li-Na

supporting information, p. 917 - 920 (2019/02/14)

An efficient iron-catalyzed intermolecular remote C(sp3)-H heteroarylation of alkyl ketones has been developed via an iminyl radical-triggered 1,5-hydrogen-atom transfer (HAT) cascade. This protocol was amenable to a wide variety of alkyl ketones and heteroaryls, thus providing a straightforward method for the late-stage functionalization of alkylketones and heteroaryls.

Reactions of acylzirconocene chloride with nucleophiles: Bimodal reactivity at β- and acyl carbons of α,β-unsaturated acylzirconocene chloride

Hanzawa,Narita,Kaku-uchi,Taguchi

, p. 7525 - 7528 (2007/10/03)

Reactions of α,β-unsaturated acylzirconocene chloride with nucleophiles showed novel bimodal reactivity at the β- and acyl carbons depending upon the nucleophile employed, and the formation of ketone α,β-dianionic species was also observed. (C) 2000 Elsev

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