作者:Wansheng Zong、Nikolai Hippchen、Nico Zeitter、Steffen Maier、Philipp Ludwig、Frank Rominger、Jan Freudenberg、Uwe H. F. Bunz
DOI:10.1021/jacs.3c13629
日期:2024.3.6
reaction of a 2,3-diamino-1,4-diethynylanthracene with a 2,3-dibromo-1,4-diethynyl anthracene. Positioning the TIPS-ethynyl groups adjacent to the central ring suppresses dimerization via [4+4] cycloadditions and Diels–Alder reactions; the middle pyrazine ring renders this species stable to oxidation. A single crystal structure was obtained, and thin film transistors with μn = 0.042 cm2 V–1 s–1 were produced
对称的7,16-二氮杂-6,8,15,17-四(三异丙基甲硅烷基乙炔基)庚苯是通过2,3-二氨基-1,4-二乙炔基与2,3-二溴基蒽在钯催化下反应得到的。 1,4-二乙炔基蒽。将 TIPS-乙炔基置于中心环附近可通过 [4+4] 环加成和 Diels-Alder 反应抑制二聚化;中间的吡嗪环使该物质对氧化稳定。获得单晶结构,并制作出μ n = 0.042 cm 2 V –1 s –1的薄膜晶体管。将炔基转位至 5,8,15,18 位,并在庚苯中心引入喹喔啉单元,会降低稳定性,在 5,18 位中引入另外两个氮原子也会降低稳定性。烃类 6,8,15,17-四(三异丙基甲硅烷基乙炔基)庚苯相当稳定,在溶液中的半衰期为 25 小时。四个正确放置的 TIPS-乙炔基可保护庚苯核心。