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84920-35-4

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84920-35-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84920-35-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,2 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84920-35:
(7*8)+(6*4)+(5*9)+(4*2)+(3*0)+(2*3)+(1*5)=144
144 % 10 = 4
So 84920-35-4 is a valid CAS Registry Number.

84920-35-4Downstream Products

84920-35-4Relevant articles and documents

Zinc Amide Catalyzed Regioselective Allenylation and Propargylation of Ketones with Allenyl Boronate

Yamashita, Yasuhiro,Cui, Yi,Xie, Peizhong,Kobayashi, Shu

supporting information, p. 6042 - 6045 (2016/01/09)

Zinc amide catalyzed, regioselective allenylation and propargylation of ketones with allenyl boronate is reported. Tertiary allenyl and homopropargyl alcohols were obtained, respectively, in high selectivities, from the same starting materials, simply by changing the reaction conditions. The substrate scope was wide. Mechanistic studies suggest that the reactions are controlled under kinetic and thermodynamic conditions.

Zinc-catalyzed allenylations of aldehydes and ketones

Fandrick, Daniel R.,Saha, Jaideep,Fandrick, Keith R.,Sanyal, Sanjit,Ogikubo, Junichi,Lee, Heewon,Roschangar, Frank,Song, Jinhua J.,Senanayake, Chris H.

supporting information; experimental part, p. 5616 - 5619 (2011/12/03)

The general zinc-catalyzed allenylation of aldehydes and ketones with an allenyl boronate is presented. Preliminary mechanistic studies support a kinetically controlled process wherein, after a site-selective B/Zn exchange to generate a propargyl zinc int

Regioselective addition reactions of propargyl bromides to carbonyl compounds with gallium catalyzed by indium

Lee, Phil Ho,Kim, Hyun,Lee, Kooyeon

, p. 1219 - 1222 (2007/10/03)

Reactions of organogallium reagents generated from propargyl bromides having substituents at the γ-position and gallium in the presence of 5 mol % of indium with aldehydes and ketones selectively produced homoallenyl alcohols in good to excellent yields.

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