Synthesis of hydroquinone-, biphenol-, and binaphthol-containing aza macroheterocycles via regioselective hydroformylation and reductive amination
作者:Goran Angelovski、Peter Eilbracht
DOI:10.1016/j.tet.2003.08.012
日期:2003.10
Rhodium(I) catalyzed regioselective hydroformylation of diolefins and subsequent reductive amination of the dialdehydes in the presence of α,ω-diamines is applied to azamacroheterocyclic ring synthesis. Starting from aromatic diallyl ethers of hydroquinone, biphenol and binaphthol 20–28 membered macroheterocycles were obtained in up to 78% yield.
Synthesis and Bromofluorination of Bis(methallyloxy)benzene and Bis(methallyloxy)biphenyl
作者:A. Khalfallah、N. Alaya
DOI:10.1134/s1070428023090257
日期:2023.9
Abstract The synthesis of new symmetrical 1,4-bis(methallyloxy)benzene and 4,4′-bis(methallyloxy)biphenyl and their bromofluorination with N-bromosuccinimide (NBS) and triethylamine trihydrofluoride (Et3N·3HF) have been described. The bromofluorination afforded exclusively the corresponding Markovnikov adducts with the fluorine atoms attached to the tertiary carbon atoms. The new compounds were characterized
摘要 描述了新型对称1,4-双(甲代烯丙氧基)苯和4,4′-双(甲代烯丙氧基)联苯的合成及其与N-溴代琥珀酰亚胺(NBS)和三乙胺三氢氟酸(Et 3 N·3HF)的溴氟化反应。溴氟化仅提供相应的马尔可夫尼科夫加合物,其中氟原子连接到叔碳原子上。新化合物通过 IR、1 H、13 C 和19 F NMR 以及高分辨率质谱进行了表征。
Resin for information recording medium
申请人:TORAY INDUSTRIES, INC.
公开号:EP0187958A2
公开(公告)日:1986-07-23
A resin for an information recording medium comprising a polymer characterized by having a crosslinked structure and a process for producing such a resin by charging a mold with a monomer component which comprises a monomer having at least two polymerizable double bonds and/or the prepolymer of the monomer and polymerizing the monomer component in the mold.