This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives. These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for use as binder and co-binder materials.
Macrocyclization by Nickel-Catalyzed, Ester-Promoted, Epoxide-Alkyne Reductive Coupling: Total Synthesis of (−)-Gloeosporone
作者:James D. Trenkle、Timothy F. Jamison
DOI:10.1002/anie.200902079
日期:——
Ringing the changes: The totalsynthesis of the title compound centers around a novel strategy that employs a nickel(0)–phosphine complex and triethyl borane in an efficient closure of a 14‐membered ring through CC bond formation (see scheme; cod=cyclooctadiene). The synthesis was accomplished in 10 steps and in approximately 9 % overall yield.
改变变化:标题化合物的全合成围绕一种新策略,该策略采用镍 (0)-膦配合物和三乙基硼烷通过 C C 键形成有效闭合 14 元环(参见方案;cod = 环辛二烯)。合成分 10 步完成,总产率约为 9%。