【作者】:Luigi Mandolini & Bernardo Masci 【题名】:Template Effects. 2.1 Convenient Syntheses of Crown Ethers Promoted by Ba++ Ion in Aqueous Solution 【期刊】:Synthetic Communications: An International Journal for Rapid Communication of Synthetic Organic Chemistry 【年、卷、期、起止页码】:Volume 9, Issue 9, 1979 ,851-856 【全文链接】:http://www.tandfonline.com/doi/abs/10.1080/00397917908064203