Synthesis of Aryl-Terminated Polyenaldehydes and Polyenetriethoxysilanes for Preparation of Self-Assembled Monolayers on Silicon Surfaces
作者:Franz Effenberger、Markus Wezstein
DOI:10.1055/s-2001-15224
日期:——
Analogous to known Wittig reactions, polyenedialdehydes 1 and 3, the latter derived from 1 and phosphonium chloride 2 in a twofold Wittig olefination, were converted with phosphonium bromides 4 to give the (all-E)-arylpolyenaldehydes 5 and 6. A terminal alkyl chain was introduced in dialdehydes 1a and 3a by reaction with P,P-didecyldibenzophospholium bromide 8, resulting in polyenals 9. Wittig olefination
Synthesis 2001, No. 9, 29 06 2001。文章标识符:1437-210X,E;2001,0,09,1368,1376,ftx,en;T00701SS.pdf。© Georg Thieme Verlag Stuttgart · 纽约 ISSN 0039-7881 摘要:合成一种末端为芳烃或杂芳烃,另一端为醛或三乙氧基甲硅烷基官能团的可与 H-反应的 w-末端官能化多烯描述了终止或氧化的硅表面。类似于已知的 Wittig 反应,多烯二醛 1 和 3(后者衍生自 1 和氯化鏻 2 在双重 Wittig 烯化中)用溴化鏻 4 转化,得到(全-E)-芳基多烯醛 5 和 6。 末端烷基链通过与 P,P-二癸基二苯并溴化磷 8 反应将其引入二醛 1a 和 3a,得到多烯醛 9。