Reactivity of Quinoline-8-carbaldehyde toward Platina-β-diketone and Acetyl(amine)platinum(II) Complexes. Formation of Acyl(hydroxyalkyl)platinum(IV)
作者:Itziar Zumeta、Tim Kluge、Claudio Mendicute-Fierro、Cristoph Wagner、Lourdes Ibarlucea、Tobias Rüffer、Virginia San Nacianceno、Dirk Steinborn、María A. Garralda
DOI:10.1021/om4011774
日期:2014.2.10
and to the formation of the acetylacyl(hydroxyalkyl)platinum(IV) complex [Pt(COMe)Cl(C9H6NCO-κN,κC)(C9H6NCHOH-κN,κC)] (3) as a single diastereomer (OC-6-46). Water-assisted activation of the OC–H bond of one aldehyde and H transfer to the oxygen atom of the second aldehyde occurs. In the presence of sodium methoxide, dehydrochlorination of the platinum starting material affords the dinuclear [Pt2(C9H6NCO-κN
铂-β-二酮[Pt 2 (COMe)2 H} 2(μ-Cl)2 ](1)与喹啉-8-甲醛(C 9 H 6 NCHO)在MeOH / H 2 O( Pt / C 9 H 6 NCHO = 1/2)导致氯桥键在1中被乙醛取代而裂解,并形成乙酰酰基(羟烷基)铂(IV)络合物[Pt(COMe)Cl(C 9 H 6 NCO-κ ñ,κ ç)(C 9 H ^ 6 NCHOH-κ ñ,κ ç)](3)作为单一非对映异构体(OC -6-46)。发生水辅助活化一个醛的OC-H键,然后H转移到第二个醛的氧原子上。在甲醇钠的存在下,铂的脱氯化氢原料,得到双核[PT 2(C 9 H ^ 6 NCO-κ Ñ,κ Ç)2(μ-来)2 ](4)配有在头戴式乙酰桥尾随时尚。吡啶或四氢呋喃失败裂解乙酰桥梁,其易于由三苯基膦裂解以得到单核[PT(C 9 H ^ 6 NCO-κ Ñ,κC)(COMe)(PPh 3)](5),