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186891-04-3

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186891-04-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 186891-04-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,8,9 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 186891-04:
(8*1)+(7*8)+(6*6)+(5*8)+(4*9)+(3*1)+(2*0)+(1*4)=183
183 % 10 = 3
So 186891-04-3 is a valid CAS Registry Number.

186891-04-3Relevant articles and documents

Bulky N-Heterocyclic-Carbene-Coordinated Palladium Catalysts for 1,2-Addition of Arylboron Compounds to Carbonyl Compounds

Okuda, Yuta,Nagaoka, Masahiro,Yamamoto, Tetsuya

, p. 6291 - 6300 (2020)

The synthesis of primary, secondary, and tertiary alcohols by the 1,2-addition of arylboronic acids or boronates to carbonyl compounds, including unactivated ketones, using novel bulky yet flexible N-heterocyclic carbene (NHC)-coordinated 2,6-di(pentan-3-yl)aniline (IPent)-based cyclometallated palladium complexes (CYPs) as catalysts is reported. The PhS-IPent-CYP-catalyzed reactions are efficient at low catalyst loadings (0.02–0.3 mol% Pd), and the exceptional catalytic activity for 1,2-addition is attributed to the steric bulk of the NHC ligand. These reactions can yield a wide range of functionalized benzylic alcohols that are difficult to synthesize by classical protocols using highly active organomagnesium or lithium reagents.

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