香豆酸酐 的英文怎麼說

中文拼音 [xiāngdòusuāngān]
香豆酸酐 英文
coumarinic anhydride
  • : Ⅰ形容詞1 (氣味好聞) fragrant; sweet smelling; aromatic; scented:稻香千里 the fragrance of ripen...
  • : 1 (豆類作物或豆類作物的種子) legumes; pulses; beans; peas 2 (古代盛食物用的器具) an ancient s...
  • : 酸構詞成分。
  • : 名詞[化學] (酸酐的簡稱) anhydride
  1. Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr

    對苯醌與乙經1 , 4 -加成生成1 , 2 , 4 -苯三酚三乙酯,然後與蘋果反應經水解、環合反應得6 , 7 -二羥基素,再經甲基化得到6 , 7 -二甲氧基素,總收率為74 . 4 % ,整個過程反應條件溫和,操作方便,適合工業生產的要求,對產品結構進行了ir和1hnmr表徵。
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