Tai, Akira; Kikukawa, Tadashi; Sugimura, Takashi; Inoue, Yosihisa; Osawa, Tsutomu; Fujii, Satoshi published the article 《Highly efficient enantio-differentiating hydrogenation over an ultrasonicated Raney nickel catalyst modified with tartaric acid》. Keywords: ultrasound Raney nickel enantioselectivity; stereochem ultrasound Raney nickel; hydrogenation diketone oxoalkanoate ultrasound Raney nickel; hydroxycarboxylic acid asym synthesis; diol asym synthesis.They researched the compound: 2,6-Dimethyl-3,5-heptanedione( cas:18362-64-6 ).Quality Control of 2,6-Dimethyl-3,5-heptanedione. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:18362-64-6) here.
A tartaric acid-NaBr-modified ultrasonicated Raney nickel catalyst showed enantioselective activity in the hydrogenation of 1,3-diketones and Me 3-oxoalkanonates. Hydrogenation of MeCOCH2COMe with ultrasonicated, modified Raney nickel gave (R)-MeCH(OH)CH2COMe, meso-MeCH(OH)CH2C(OH)Me, and erythro-MeCH(OH)CH2C(OH)Me in a 7:7:86 ratio; the yield of erythro-MeCH(OH)CH2CH(OH)Me (32% enantiomeric excess) was 60%. Reduction of MeCOCH2CO2Me gave (R)-MeCH(OH)CH2CO2Me in 86% enantiomeric excess.
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Reference:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica