以下为句子列表:
英文: Abstract: The phenyl Lithium, 2-methoxy phenyl Lithium and 2,4-dimethoxy phenyl Lithium reacted with the cinnamic acid to produce a corresponding chalcone in 75%, 56%, 50%yield, respectively. 2,6-Dimethoxyphenyl Lithium could not react with cinnamic acid,
中文: 文摘:苯基锂、2-甲氧基苯基锂和2,4-二甲氧苯基锂分别与肉桂酸反应以75%,65%,50%的收率生成相应的查尔酮;2,6-二甲氧基苯基锂与肉桂酸不发生反应,但能与肉桂酸甲酯反应生成2′,6′-二甲氧基查尔酮;类似的还制得了2′,4′,6′-三甲氧基查尔酮和2′,4′,4,6′-四甲氧基查尔酮。
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英文: 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 syn
中文: 对苯醌与乙酸酐经1,4-加成生成1,2,4-苯三酚三乙酸酯,然后与苹果酸反应经水解、环合反应得6,7-二羟基香豆素,再经甲基化得到6,7-二甲氧基香豆素,总收率为74.4%,整个过程反应条件温和,操作方便,适合工业生产的要求,对产品结构进行了IR和1HNMR表征。
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英文: Six Quaternary Ammonium tetraphenyl borates salt photobase generators were synthesized with the use of p-methoxy phenacylmethylene or 2-naphthoymethylene as chromophore, and triethylene diamine, pyridine or 3-methyl pyridine as tertiary amine.
中文: 摘要以对甲氧基苯乙酮、萘乙酮生色团为母体、杂环叔胺三亚乙基二胺,吡啶,3-甲基吡啶和四苯硼盐为原料,合成了6种四苯硼季铵盐光产碱剂。
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英文: One pot synthesis of (Z)-N-methoxy imidoyl bromides
中文: 一壶法合成(Z)-N-烷氧基偕卤代亚胺
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英文: Synthesis and Biological Activity of S-Alkyl (or Aralkyl)--alkyl (or aryl)- -[-(-methoxy (or chloro)benzimidazole--mercapto)phenyl]isothioureas
中文: S-烃基烃基- -[-(-取代苯并咪唑--巯基)苯基]异硫脲的合成及生物活性
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