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74882-32-9

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74882-32-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74882-32-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,8 and 2 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74882-32:
(7*7)+(6*4)+(5*8)+(4*8)+(3*2)+(2*3)+(1*2)=159
159 % 10 = 9
So 74882-32-9 is a valid CAS Registry Number.

74882-32-9Relevant articles and documents

Highly productive α-alkylation of ketones with alcohols mediated by an Ir-oxalamidato/solid base catalyst system

Maeda, Hironori,Nara, Hideki,Shimizu, Hideo

supporting information, p. 2772 - 2779 (2020/12/29)

An Ir-oxalamidato complex in combination with a solid base (e.g., magnesium aluminometasilicate/Ca(OH)2) significantly improved the catalyst productivity in α-alkylation of methyl ketones with primary alcohols. Optimization through systematic variation of the oxalamidato ligand led to a practical turnover number (TON) of 10 000.40 000.

Tandem hydrogenation and condensation of fluorinated α,β-unsaturated ketones with primary amines, catalyzed by nickel

Castellanos-Blanco, Nahury,Flores-Alamo, Marcos,García, Juventino J.

, p. 15653 - 15663 (2015/09/07)

A simple homogeneous catalytic system based on nickel phosphine complexes has been developed for the transfer hydrogenation and condensation of α,β-unsaturated ketones to yield saturated ones and saturated imines using primary amines as hydrogen donors. Thus, a wide range of fluorinated 1,5-diaryl-1,4-pentadiene-3-ones were allowed to react with substituted benzylamines in the presence of [(dippe)Ni(μ-H)]2 (dippe = 1,2-bis-(diisopropylphosphino)-ethane) using ethanol as a solvent at 180 °C to give the corresponding saturated carbonyl compounds; here hydrogenation of the CC bond was preferred over the CO bond. Under the same reaction conditions but using an excess of benzylamine, a tandem process is then favoured, starting also with the reduction of the CC bond followed by a nucleophilic addition of the primary amine to yield valuable saturated imines with good to excellent yields (62%-91%).

Use of Saccharomyces cerevisiae yeasts in the chemoselective bioreduction of (1E,4E)-1,5-bis(4-methoxyphenyl)-1,4-pentadien-3-one in biphasic system

Schaefer, Ce?sar A.,Silva, Vanessa D.,Stambuk, Boris U.,Da Nascimento, Maria G.

, p. 1116 - 1122 (2013/08/23)

This work describes the chemoselective bioreduction of (1E,4E)-1,5-bis(4- methoxyphenyl)- 1,4-pentadien-3-one (1) mediated by baker's yeast (BY, Saccharomyces cerevisiae cells) in an aqueous/organic solvent biphasic system. The biotransformation of this c

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