Synthesis and antidepressant-like activity of novel aralkyl piperazine derivatives targeting SSRI/5-HT 1A /5-HT 7
作者:Zheng-Song Gu、Ai-nan Zhou、Ying Xiao、Qing-Wei Zhang、Jian-Qi Li
DOI:10.1016/j.ejmech.2017.12.063
日期:2018.1
piperazine derivatives were synthesized, and evaluated for their serotonin reuptake inhibitory and 5-HT1A/5-HT7 receptors affinities activity. Antidepressant activities in vivo of the compounds were screened using the forced swimming test (FST) and tail suspension test (TST). The results indicated that compounds 21k (RUI, IC50 = 31 nM; 5-HT1A, 5-HT7, ki = 62, 12 nM) and 21n (RUI, IC50 = 25 nM; 5-HT1A, 5-HT7
for the synthesis of fluorene and its derivatives starting from 2-iodobiphenyls and CH2Br2. A range of fluorene derivatives can be synthesized under relatively mild conditions. The reaction proceeds via a tandem palladium-catalyzed dual C–C bond formation sequence through the key dibenzopalladacyclopentadiene intermediates, which are obtained from 2-iodobiphenyls through palladium-catalyzed C–H activation
Copper‐Catalyzed Diphenylation of P(O)‐OH Bonds with Cyclic Diaryliodonium Salts
作者:Gang Wang、Biquan Xiong、Congshan Zhou、Yu Liu、Weifeng Xu、Chang‐An Yang、Ke‐Wen Tang、Wai‐Yeung Wong
DOI:10.1002/asia.201901284
日期:2019.12.2
A copper-catalyzed diphenylation of P(O)-OH bonds with cyclic diaryliodonium salts is described. Valuable 2'-iodo substituted biaryl phosphinic/phosphoric acid esters were obtained in good to excellent yields, which could be further transformed to diversified building blocks for the synthesis of bioactive compounds, pharmaceuticals and functional materials.
A palladium-catalyzed C–H functionalization of an external ring of N-acyl 2-aminobiaryl with bicyclo[2.2.1]hept-2-ene (norbornene) via multiple C–H bond activations was developed. This study is the first report of the formation of bis-norbornene annulated biarylamines isomers (syn-3a′/anti-3a′ = 36:64) from multiple C–H bond functionalizations. Additionally, nondirected C–H bond functionalization at
通过多个CH键活化,开发了钯催化的N-酰基2-氨基联芳与双环[2.2.1]庚-2-烯(降冰片烯)外环的CH功能化。这项研究是第一个关于由多个C–H键官能化形成双降冰片烯环化的联芳基胺异构体(syn - 3a' / anti - 3a' = 36:64)的报道。此外,在C-4'位置用烯烃进行的无方向C–H键官能化可完全形成五个C–H键的C–H功能化,从而形成一个稳定的六取代苯环。
Scalable electrochemical synthesis of diaryliodonium salts
作者:Mohamed Elsherbini、Wesley J. Moran
DOI:10.1039/d1ob00457c
日期:——
Cyclic and acyclic diaryliodonium are synthesised by anodic oxidation of iodobiaryls and iodoarene/arene mixtures, respectively, in a simple undivided electrolysis cell in MeCN–HFIP–TfOH without any added electrolyte salts. This atom efficient process does not require chemical oxidants and generates no chemical waste. More than 30 cyclic and acyclic diaryliodoniumsalts with different substitution
环状和非环状二芳基碘鎓分别通过碘联芳基和碘代芳烃/芳烃混合物的阳极氧化合成,在 MeCN-HFIP-TfOH 的简单未分隔电解池中,不添加任何电解质盐。这种原子效率的过程不需要化学氧化剂,也不会产生化学废物。以非常好的收率制备了 30 多种具有不同取代模式的环状和非环状二芳基碘鎓盐。将反应放大至 10 mmol 规模,在不到 3 小时内得到超过 4 克的二苯并[ b , d ]碘-5-鎓三氟甲磺酸盐 (>95%)。大规模实验的溶剂混合物被回收(>97%)并循环多次,收率没有显着降低。