Friedel–Crafts acylation using bismuth triflate in [BMI][PF6]
作者:Phuong Hoang Tran、Fritz Duus、Thach Ngoc Le
DOI:10.1016/j.tetlet.2011.11.022
日期:2012.1
Bismuth trifluoromethanesulfonate was found to be a good catalyst for the Friedel–Crafts acylation. Bismuthtriflate immobilized in an ionicliquid was the most efficient catalytic system. Bismuthtriflate in [BMI][PF6] catalyzes this reaction under microwave irradiation allowing the rapid synthesis of aryl ketones in excellent yields. The catalyst system was easily recovered and reused several times
Chiral phosphoric acid catalyzed asymmetric transfer hydrogenation of bulky aryl ketones with ammonia borane
作者:Qiwen Zhou、Wei Meng、Xiangqing Feng、Haifeng Du、Jing Yang
DOI:10.1016/j.tetlet.2019.151394
日期:2020.1
An asymmetrictransferhydrogenation of bulky aryl ketones with ammonia borane was successfully realized with chiral phosphoric acid (CPA) as catalyst and water as additive. A variety of optically active secondary alcohols were obtained in good to high yields with up to 77% ee. The reaction likely proceeded through a Brønsted acid-promoted double-hydrogen transfer between ketones and ammonia borane
COMPOUNDS AND METHODS FOR KINASE MODULATION, AND INDICATIONS THEREFOR
申请人:Plexxikon Inc.
公开号:US20160176865A1
公开(公告)日:2016-06-23
Compounds active on protein kinases are described, as well as methods of using such compounds to treat diseases and conditions associated with aberrant activity of protein kinases.
本文描述了在蛋白激酶上活性化合物,以及使用这些化合物治疗与蛋白激酶异常活动相关的疾病和状况的方法。
TRPM8 receptor agonist compounds and uses thereof
申请人:UNIVERSIDAD MIGUEL HERNANDEZ DE ELCHE
公开号:US10905679B2
公开(公告)日:2021-02-02
The invention relates to compounds having formula (I) wherein A is selected from the group consisting of: a) optionally substituted (C1-C8) alkyl; b) optionally substituted (C3-C6) cycloalkyl; c) optionally substituted (C6-C14) aryl; d) optionally substituted (C6-C14) heteroaryl; e) C(O)—(C6-C14) aryl, in which group (C6-C14) aryl is optionally substituted; f) C(O)—(C6-C14) heteroaryl, in which group (C6-C14) heteroaryl is optionally substituted; g) CH(OH)—(C6-C14) aryl, in which group (C6-C14) aryl is optionally substituted; and h) CH(OH)—(C6-C14) heteroaryl, in which group (C6-C14) heteroaryl is optionally substituted. The invention also relates to methods for the production of said compounds, to pharmaceutical and veterinary compositions comprising said compounds and to the therapeutic uses thereof, such as for the prevention and/or treatment of dry eye syndrome, vaginal dryness and/or burning mouth syndrome.
本发明涉及具有式 (I) 的化合物,其中 A 选自以下组成的组:a) 任选取代的(C1-C8)烷基; b) 任选取代的(C3-C6)环烷基; c) 任选取代的(C6-C14)芳基; d) 任选取代的(C6-C14)杂芳基; e) C(O)-(C6-C14)芳基,其中基团(C6-C14)芳基被任选取代;f) C(O)-(C6-C14)杂芳基,其中基团(C6-C14)杂芳基被任选取代; g) CH(OH)-(C6-C14)芳基,其中基团(C6-C14)芳基被任选取代;以及 h) CH(OH)-(C6-C14)杂芳基,其中基团(C6-C14)杂芳基被任选取代。本发明还涉及生产所述化合物的方法、包含所述化合物的药物和兽药组合物及其治疗用途,例如用于预防和/或治疗干眼症、阴道干燥症和/或灼口症。
Catalysis of the acylation of aromatic derivatives by metallic tosylates
作者:Vincent Morizur、Jessica Szafranek、Dominique Bonhomme、Sandra Olivero、Jean Roger Desmurs、Elisabet Duñach
DOI:10.1016/j.tet.2015.07.027
日期:2015.9
A series of metallic tosylates were prepared by ultrasonic metal activation and were further used as efficient catalysts for the acylation of aromatic derivatives. (C) 2015 Elsevier Ltd. All rights reserved.