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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/28428


    標題: On The Chemical Methylation of Quinones With Methylcobalamin
    作者: Chau-Yang Chen
    Takao Kwan
    貢獻者: 私立嘉南藥學專科學校
    日期: 1975
    上傳時間: 2014-12-26 11:49:01 (UTC+8)
    摘要: In this paper, we wish to report a facile methylation of aimple quinones as revealed by their reactions with methylcobalamin in aqueous solutions. Previous report 1) from this laboratory concerned with similar reactions but by the use of synthetic cobalt complex such as methylcobaloxime (bis (dimethylglyoximato) cobalt) in CH3OH-CH3CN solutions,where the trdnsmethylations were recognized to only a very msall extent unless some transition metal salts were added to the reaction system. In the present work, C-methylation of 1, 4-benzoquinone (BQ) as well as of 1, 4-naphthoquinone (NQ) was found to take place to 30-50 % yield without any additive at 37? in the presence of methylcobalamin (CH3-B12) in aqueous solutions.
    關聯: 嘉南學報, n.1 pp.110-113 轉載
    Appears in Collections:[藥學系(所)] 期刊論文
    [嘉南學報] 1期 (1975)

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