They were principally used to catalyze aldol, allylation, Diels - Alder, ene and Friedel - Crafts reactions.
它们主要被用来催化Aldol, 烯丙基化, Diels-Alder, Ene和 Friedel -Crafts等反应.
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Peace river region of originxiang fu streets and towns , less densely ene.
和睦地区原属小河街道和祥符镇, 人烟烯少.
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The hetero ene reaction is an important part of ene reaction.
杂原子烯反应是该反应的重要组成部分.
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Hydrocortisone ( HC ), 11� � , 17α, 21 - trihydroxypregn - 4 - ene - 3,20 - dione, is an important grucocorticoid.
氢化可的松 ( hydrocortisone,HC ), 化学名称为11β,17α, 21-三羟基孕甾 -4- 烯 -3,20-二酮, 属肾上腺皮质激素类药.
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Small ene experienced so much.
小烯经历这么多.
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G ene ral examination did not reveal abnormal findings except the skin lesions.
组织病理显示为慢性肉芽肿样反应,见大量淡棕色分枝分隔的菌丝.
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Ene reaction is one of the simple and versatile reactions in organic synthesis.
烯反应是有机合成中简单而用途广泛的反应之一.
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Abstract: Ene reaction is one of the simple and versatile reactions in organic synthesis.
文摘: 烯反应是有机合成中简单而用途广泛的反应之一.
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Ene reaction is one of the simple and versatile reactions of organic synthesis in recent years.
烯反应是新近被用于有机合成的简单而重要的反应.
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Results: The substance was identified as 22 hydroxy 23 , 24 bisnorchol 4 ene 3 one.
结果: 待鉴定产物为20羟基23,24二降胆4烯3酮.
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