The Reaction of Ketenylidenetriphenylphosphorane (Ph<sub>3</sub>P˭C˭C˭O) with Acidic H‒E (E˭O, N) Bonds
作者:Miller G. Makramalla、Monica T. Diab、Cody N. Sherren、Arthur D. Hendsbee、Jason D. Masuda、Katherine N. Robertson、Jason A. C. Clyburne
DOI:10.1080/10426507.2012.710674
日期:2012.12.1
least toward the goal of preparing low-valent carbon-centered materials. Finally, 1 was also reacted with the bulky tin reagent, bis[bis(trimethylsilyl)amido]tin(II), in the presence of 2,4,6-trimethylphenol. A complex mixture of products was obtained, from which crystals of an unusual chelated tin compound (15) were isolated and characterized using X-ray crystallography. GRAPHICAL ABSTRACT
摘要 研究了亚乙烯基三苯基正膦 (1) 与质子试剂 2,4,6-三甲基苯酚 (7)、2,6-二叔丁基-4-甲基苯酚 (8) 和二苯胺 (9) 的反应性。已经合成并表征了三种新型羰基稳定叶立德。分别获得了 Ph3PCHC(O)O(C6H2Me3) (11)、Ph3PCHC(O)O(C6H2t-Bu2Me) (12) 和 Ph3PCHC(O)NPh2 (13) 的晶体结构。然后这些产品被甲基化,以试图开发一条获得低价碳化合物的新途径。[Ph3PCH(CH3)C(O)O(C6H2Me3)]I (14) 的晶体被分离和表征,但该路线并未证明是合成有用的,至少在制备低价碳中心材料的目标方面是这样。最后,在 2,4,6-三甲基苯酚的存在下,1 还与庞大的锡试剂双[双(三甲基甲硅烷基)酰氨基]锡(II)反应。获得了复杂的产物混合物,从中分离出不寻常的螯合锡化合物 (15) 的晶体,并使用 X 射线晶体学表征。图形概要