来源 :Chinese Chemical Letters | 被引量 : [!--cite_num--]次 | 上传用户:[!--user--]
【摘 要】
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Methylenedioxyphenyl unit displays a significant stereoelectronic effect in some key transformations in the total synthesis of cephalotaxine. The ring-strain of
The theoretical evaluating method is given for the drawability of the sheet with normal anisotropy. The generalsolution on the cracking load of deep-drawing is
Mesoporous silicoaluminum pillared clays have been synthesized by one-potgallery-templated synthesis using organomontmorillonite, tetraethyl orthosilicate and a