6312-22-7Relevant academic research and scientific papers
Nickel-Copper-Catalyzed Hydroacylation of Vinylarenes with Acyl Fluorides and Hydrosilanes
Ueda, Yusuke,Iwai, Tomohiro,Sawamura, Masaya
supporting information, p. 9410 - 9414 (2019/05/29)
The hydroacylation of vinylarenes with acyl fluorides and hydrosilanes was enabled by a synergistic bimetallic Ni/Cu-catalytic system, giving access to the corresponding branched ketone products. The reaction takes place under mild conditions at 25–80 °C and tolerates base-sensitive functional groups such as methoxycarbonyl and acetoxy groups.
REGIOSELECTIVE ADDITION OF TITANIUM ENOLATES TO 1-ACYLPYRIDINIUM SALTS. A CONVENIENT SYNTHESIS OF 4-(2-OXOALKYL)PYRIDINES
Comins, Daniel L.,Brown, Jack D.
, p. 3297 - 3300 (2007/10/02)
Titanium enolates add to the 4-position of 1-phenoxycarbonylpyridinium salts to give 1,4-dihydropyridines; subsequent aromatization provides 4-(2-oxoalkyl)pyridines.
Structure-Activity Relationship Study of the Inhibition of Adrenal Cortical 11β-Hydroxylase by New Metyrapone Analogues
Hays, Sheryl J.,Tobes, Michael C.,Gildersleeve, David L.,Wieland, Donald M.,Beierwaltes, William H.
, p. 15 - 19 (2007/10/02)
Metyrapone, 2-methyl-1,2-di-3-pyridil-1-propanone (1a), is a potent reversible inhibitor of the cytochrome P-450 11β-hydroxylase enzyme system (P-45011β) of the adrenal cortex.The structural features of the metyrapone molecule have been systema
REGIOSELECTIVE SYNTHESIS OF 4-(2-OXOALKYL)PYRIDINES VIA 1,4-DIHYDROPYRIDINE DERIVATIVES USING SILYL ENOL ETHERS AND PYRIDINIUM SALTS
Akiba, Kin-ya,Nishihara, Yoshihiro,Wada, Makoto
, p. 5269 - 5272 (2007/10/02)
Trimethylsilyl enol ethers (1) reacted with 1-ethoxycarbonylpyridinium chloride (3) at 4-position with high regioselectivity to afford 1-ethoxycarbonyl-4-(2-oxoalkyl)-1,4-dihydropyridines (4) in 42-87percent yields.When 2,2,2-trichloroethyl chloroformate
Synthetic Applications of N-N Linked Heterocycles. Part 8. Regiospecific Synthesis of 4-(α-Acylalkyl)pyridines by Attack of Lithium Enolates of Ketones γ to N-(2,6-Dimethyl-4-oxopyridin-1-yl)pyridinium Salts
Lee, Cheuk Man,Sammes, Michael P.,Katritzky, Alan R.
, p. 2458 - 2462 (2007/10/02)
The addition of N-(2,6-dimethyl-4-oxopyridin-1-yl)pyridinium salts (2) - (4) to lithium enolates (1) of ketones in tetrahydrofuran at low temperatures gives regiospecifically high yields of 1,4-dihydro-adducts (5) - (7).These are readily isolated and can be decomposed under free-radical conditions, also in high yield, to 4-(α-acylalkyl)pyridines (8) - (10).Unsymmetrical dialkyl ketones give a mixture of two isomeric products, the ratio depending upon reaction conditions and steric factors. αβ-Unsaturated ketones, however, give products resulting from reaction exclusively at the position α' to the carbonyl group.
