Synthesis and Reactivity of <sup>18</sup>F-Labeled α,α-Difluoro-α-(aryloxy)acetic Acids
作者:Tanatorn Khotavivattana、Samuel Calderwood、Stefan Verhoog、Lukas Pfeifer、Sean Preshlock、Neil Vasdev、Thomas L. Collier、Véronique Gouverneur
DOI:10.1021/acs.orglett.6b03730
日期:2017.2.3
In this work, we describe the 18F-labeling of α,α-difluoro-α-(aryloxy)aceticacid derivatives and demonstrate that these building blocks are amenable to post-18F-fluorination functionalization. Protodecarboxylation offers a new entry to 18F-difluoromethoxyarene, and the value of this approach is further demonstrated with coupling processes leading to representative 18F-labeled TRPV1 inhibitors and
Fluorodecarboxylation: Synthesis of aryl trifluoromethyl ethers (ArOCF3) and thioethers (ArSCF3)
作者:Sankarganesh Krishanmoorthy、Simon D. Schnell、Huong Dang、Fang Fu、G.K. Surya Prakash
DOI:10.1016/j.jfluchem.2017.07.017
日期:2017.11
Fluorodecarboxylation of aryloxydifluoroacetic acid (ArOCF2CO2H) and arylmercaptodifluoroacetic acid (ArSCF2CO2H) towards ArXCF3 (X = O, S) using silver (I) salts in the presence of Selectfluor in a biphasic system with trifluoroacetic acid additive is discussed.
在具有三氟乙酸添加剂的双相体系中,在Selectfluor的存在下,使用银(I)盐存在下,使用银(I)盐将芳氧基二氟乙酸(ArOCF 2 CO 2 H)和芳基巯基二氟乙酸(ArSCF 2 CO 2 H)朝ArXCF 3(X = O,S)进行氟羧化讨论。