Synthesis of [4]Dendralene Derivatives Possessing Quadruple 1,3-Dithiol-2-ylidenes and Transformation to a Trimethylenecylopentene in an Oxidation State.

• Tác giả: Daisuke Kasai, Yuji Kawasaki, Yohji Misaki, Takashi Shirahata, Miyu Takezaki, Masafumi Ueda, Aya Yoshimura
• Ngôn ngữ: eng
• Ký hiệu phân loại: 331.1204 Labor force and market
• Thông tin xuất bản: United States : Organic letters , 2025
• Bộ sưu tập: NCBI
• ID: 692490

Tóm tắt

New derivatives of [4]dendralene with redox-active 1,3-dithiol-2-ylidene units were synthesized. X-ray crystal structure analysis of the dibenzo-tetramethyl derivative revealed that the molecule takes a conformation in which two vinyl-extended TTF moieties are significantly inclined to each other. The octamethyl derivative underwent cyclization with skeletal rearrangement in the dicationic state to give the corresponding dicationic trimethylenecylopentene, which exhibited a simultaneous two-electron reduction wave at a significantly negative potential of -0.42 V (V vs Fc/Fc