CuI-Catalyzed [3+2] Cycloaddition of Hindered Vinylidenebisphosphonates (VBP) with Azomethine Imines for Highly Regioselective Access to Dinitrogen-Heterobicycle-Containing Bisphosphonates
作者:Zhongxiang Zhu、Qinghe Wang、Dulin Kong、Tiao Huang、Mingshu Wu
DOI:10.1055/s-0036-1591555
日期:2018.7
presence of CuI in toluene media has been developed. The targeted compounds were obtained in good yields and with excellent regioselectivity. This method for the synthesis of gem-bisphosphonates (BPs) is particularly attractive due to features such as low cost, mild conditions, atom economy, high stereoselectivity, and potential biological activity of the product. A concise, atom-economic, and highly regioselective
摘要 一种简明的,原子经济的和高度区域选择性的合成策略,用于在甲苯中存在CuI的情况下,通过偶氮甲亚胺与1,4-亚乙基亚乙基-1,1-双膦酸酯的1,3-偶极环加成反应,构建多个带有双膦酸酯的双氮稠合杂环。媒体已经发展起来。以良好的产率和优异的区域选择性获得了目标化合物。这个用于合成方法宝石-bisphosphonates(BPS)是特别有吸引力因功能,例如成本低,在温和的条件,原子经济性,高立体选择性,并且该产品的潜在的生物活性。 一种简明的,原子经济的和高度区域选择性的合成策略,用于在甲苯中存在CuI的情况下,通过偶氮甲亚胺与1,4-亚乙基亚乙基-1,1-双膦酸酯的1,3-偶极环加成反应,构建多个带有双膦酸酯的双氮稠合杂环。媒体已经发展起来。以良好的产率和优异的区域选择性获得了目标化合物。这个用于合成方法宝石-bisphosphonates(BPS)是特别有吸引力因功能,例如成本低,在温