A comparative study of thallium(<scp>iii</scp>) and iodine(<scp>iii</scp>)-mediated ring contraction reactions for the synthesis of indane
作者:Ajmir Khan、Luiz F. Silva、Muhammad Rabnawaz
DOI:10.1039/d0nj04700g
日期:——
Reported herein is a comparative study of the synthesis of indane via ring contraction reaction, mediated by iodine(III) and thallium(III). A series of protected 1,2-dihydronaphthalenes were synthesized and subjected to hydroxy(tosyloxy)iodobenzene (HTIB) and thallium(III) nitrate trihydrate (TTN) in trimethyl orthoformate (TMOF) to compare the percent yields provided by both oxidizing agents. The
本文报道了由碘(III)和th(III)介导的通过环收缩反应合成茚满的比较研究。合成了一系列受保护的1,2-二氢萘,并使其在原甲酸三甲酯(TMOF)中经受羟基(甲苯磺酰氧基)碘苯(HTIB)和硝酸al (III)三水合物(TTN)的比较,以比较两种氧化剂提供的收率百分比。用TOF·3H 2 O在TMOF中进行的反应,环缩合产物(茚满)的收率在61–88%的范围内。但是,发现产量要低得多(例如(18-34%)时,在TMOF中将HTIB与某些其他产品一起使用。这项研究提供了与两种氧化剂对环收缩反应的功效有关的重要进展。