期刊
ACS OMEGA
卷 3, 期 8, 页码 8945-8951出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsomega.8b01305
关键词
-
资金
- Nanyang Technological University under the Undergraduate Research Experience on Campus (URECA) programme
Hitherto inaccessible multisubstituted thiochroman derivatives were constructed via the one-pot reaction of thiophenols with allylic alcohols catalyzed by 0.2 equiv triflic acid under metal-free conditions. A variety of thiochroman derivatives can be obtained by this straightforward protocol that allows the introduction of up to four substituents at various locations on the thiochroman skeleton. Relative conformations of all isolated products were confirmed by NOESY NMR studies, and a stepwise mechanism, proceeding via an allylic substitution-intramolecular cyclization protocol, is proposed on the basis of NMR experiments.
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