The present application relates to compounds and methods for treating pain, incontinence and other conditions.
本申请涉及化合物和治疗疼痛、失禁和其他疾病的方法。
Boron Trifluoride Induced Palladium-Catalyzed Cross-Coupling Reaction of 1-Aryltriazenes with Areneboronic Acids
作者:Tomoyuki Saeki、Eun-Cheol Son、Kohei Tamao
DOI:10.1021/ol036436b
日期:2004.2.1
[reaction: see text] Aryltriazenes are directly coupled with areneboronic acids in the presence of a catalytic amount of Pd(2)(dba)(3) and P(tBu)(3) together with 1 equiv of BF(3).OEt(2) in DME to afford the corresponding biaryl products in up to 98% yield. A carbonylative cross-couplingreaction under a carbon monoxide atmosphere is also found to give the corresponding diaryl ketone with a similar
valuable molecules requires a multistep sequence. Therefore, a simple, one-step protocol to access libraries of polyaromatic indole scaffolds is highly desirable. Herein we describe the direct synthesis of polysubstituted indolo[2,1-a]isoquinoline analogues via a double C–H annulation cascade using triazene as an internally cleavable directing group. Evidence from HRMS and theoretical calculations suggests