37619-50-4Relevant academic research and scientific papers
Preparation method of 2, 2-dimethyl cyclopentanone
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Paragraph 0019, (2021/06/23)
The invention discloses a preparation method of 2, 2-dimethyl cyclopentanone, which comprises the following steps: methylating 2-methoxycarbonyl cyclopentanone to obtain a methylated product 2-methyl-2-methoxycarbonyl cyclopentanone, carrying out keto-carbonyl protection on the methylated product to obtain a protected product 2-methyl-2-methoxycarbonyl cyclopentanone ketal, carrying out ester group reduction on the protection product to obtain an alcohol product 2-hydroxymethyl-2-methyl cyclopentanone ketal, carrying out deprotection on the alcohol product under an acidic condition to obtain a deprotection product 2-hydroxymethyl-2-methyl cyclopentanone, and brominating the deprotection product to obtain 2-bromomethyl-2-methyl cyclopentanone. All raw materials adopted by the method are low in cost and easy to obtain in the market, and reactions in all steps are conventional reactions and easy to implement; the process is simple, mild in reaction condition and easy to operate; the reaction time is short, control is easy, the yield of each step is 90% or above, and industrial large-scale production is easy to achieve.
Oxidation of 1-hydroxyazetidines to four-membered cyclic nitrones and β-lactams
Elburg, P. A. van,Reinhoudt, D. N.
, p. 381 - 387 (2007/10/02)
The 1-(benzyloxy)azetidines 7a-c and 16a,b were synthesized by reductive cyclization of the corresponding oximes 5a-c and 14a-d.Oxidation of the 1-hydroxyazetidines 8a-c and 17 with PbO2 afforded the corresponding four-membered cyclic nitrones 18a-c and t
