The inorganic DMSO/POCl3 reaction with BODIPY: wide product formation and implications for biological ROS sensing and neurodegenerative disease research
摘要:
我们报告了用 POCl3/DMSO 处理 4,4-二氟-1,3,5,7-四甲基-8-(芳基)-4-bora-3a,4a-diaza-s-茚的精制和扩展合成研究。2-chloro-6-methylsulfide 衍生物(Kim TI、Park S、Choi Y 和 Kim Y. Chem. Asian J. 2011; 6: 1358-61.)是五种共助剂之一,其中包括 2,6-二磺酸基和二氯化物以及单取代的对应物。8-meso 尾基改变了产物的分布。不同的含硫产物在 NaOCl(10 等量)的作用下会产生不同的 "关闭-开启 "反应。化合物 4b 和 2b 显示出较低的毒性,并能进入神经母细胞瘤的并核区域。
Meso-thienyl and furyl rotor effects in BF2-chelated dipyrrin dyes: solution spectroscopic studies and X-ray structural packing analysis of isomer and congener effects
摘要:
Well-defined discrete fluorescent molecular systems with very subtle steric/electronic differences are interesting when considering solid-state packing and solution substituent effects. Herein, we report the synthesis and characterization of four 4,4-difluoro-1,3,5,7-tetramethyl-8-(C4H3 X)-4-bora-3a,4a-diaza-s-indacene complexes (X?=?O, S). Various NMR spectroscopic experiments were used to assign all relevant atoms (CD2Cl2): 19F, 11B, 1H, 13C, 13CH undecoupled, 1H1H COSY, 1H1H NOESY, 1H13C HSQC, and 1H13C HMBC NMR spectroscopy. UV-Vis and fluorescence studies were undertaken for all compounds. Chemical shift differences were found between isomers and congeners; for congeners, aromatic d differences were attributed to electron-poor character. Also, compounds 14 were studied crystallographically. In the solid state, internal dihedral planes and intermolecular packing patterns can be compared.