611-69-8Relevant articles and documents
Catalytic asymmetric transfer hydrogenation of ketones using terpene-based chiral β-amino alcohols
Watts, Cian Christopher,Thoniyot, Praveen,Cappuccio, Frank,Verhagen, Joelle,Gallagher, Brain,Singaram, Bakthan
, p. 1301 - 1307 (2006)
Catalytic asymmetric transfer hydrogenations of aromatic alkyl ketones have been studied using [RuCl2(p-cymeme)]2 and terpene-based β-amino alcohols. The limonene derived amino alcohol, (1S,2S,4R)-1-methyl-4-(1-methylethenyl)-2-(meth
Pinacol versus para coupling of aromatic ketones
Maury, Olivier,Villiers, Claude,Ephritikhine, Michel
, p. 6591 - 6594 (1997)
Aromatic ketones PhCOR were coupled with uranium complexes to give, after deuterolysis, the pinacol 3 and the keto-alcohol 4 resulting respectively from the pinacol and para coupling of the carbonyl substrate. The organometallic precursors of 3 and 4 were
Cyclometalated (NNC)Ru(ii) complex catalyzed β-methylation of alcohols using methanol
Belkova, Natalia V.,Ganguli, Kasturi,Kundu, Sabuj
supporting information, p. 4354 - 4365 (2022/04/07)
Indolyl fragment containing phenanthroline based new ligands and their corresponding Ru(ii) complexes were synthesized and fully characterized by various spectroscopic techniques. The catalytic activity of these newly synthesized cyclometalated (NNC)Ru(ii) complexes was explored towards the β-methylation of alcohols using methanol. Notably, these complexes displayed superior reactivity compared to various (NNN)Ru(ii) complexes. Utilizing this strategy, a wide range of primary, secondary, and aliphatic straight chain alcohols were selectively methylated. This protocol was further employed for the methylation of a few natural products and the gram scale synthesis of β-methylated alcohols. A series of control experiments and kinetic studies were performed to understand the plausible reaction mechanism.
Pincerlike molybdenum complex and preparation method thereof, catalytic composition and application thereof, and alcohol preparation method
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Paragraph 0125-0130, (2021/08/11)
The invention discloses a clamp-type molybdenum complex, a preparation method, a corresponding catalyst composition and application. The method comprises the steps: obtaining 9 molybdenum complexes with different structures through coordination reaction of 2-(substituent ethyl)-(5, 6, 7, 8-tetrahydroquinolyl) amine and a corresponding carbonyl molybdenum metal precursor; and catalyzing a ketone compound transfer hydrogenation reaction through a molybdenum complex to generate 40 alcohol compounds. The preparation method of the molybdenum complex is simple, high in yield and good in stability. For a transfer hydrogenation reaction of ketone, the molybdenum-based catalytic system has high catalytic activity and small molybdenum loading capacity, is used for production of aromatic and aliphatic alcohols, and has the advantages of simple method, small environmental pollution and high yield.
Amino Acid-Functionalized Metal-Organic Frameworks for Asymmetric Base–Metal Catalysis
Newar, Rajashree,Akhtar, Naved,Antil, Neha,Kumar, Ajay,Shukla, Sakshi,Begum, Wahida,Manna, Kuntal
supporting information, p. 10964 - 10970 (2021/03/29)
We report a strategy to develop heterogeneous single-site enantioselective catalysts based on naturally occurring amino acids and earth-abundant metals for eco-friendly asymmetric catalysis. The grafting of amino acids within the pores of a metal-organic framework (MOF), followed by post-synthetic metalation with iron precursor, affords highly active and enantioselective (>99 % ee for 10 examples) catalysts for hydrosilylation and hydroboration of carbonyl compounds. Impressively, the MOF-Fe catalyst displayed high turnover numbers of up to 10 000 and was recycled and reused more than 15 times without diminishing the enantioselectivity. MOF-Fe displayed much higher activity and enantioselectivity than its homogeneous control catalyst, likely due to the formation of robust single-site catalyst in the MOF through site-isolation.