期刊
TETRAHEDRON LETTERS
卷 59, 期 11, 页码 1023-1027出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2018.01.084
关键词
Trimerization; Ring-closing metathesis; Buchwald-Hartwig cross-coupling reaction; Clauson-Kaas pyrrole synthesis
资金
- Department of Science and Technology (DST), New Delhi, India
- Department of Science and Technology [SR/S2/JCB-33/2010]
- Praj industries, Pune
- IIT-Bombay
We have demonstrated three contrasting synthetic strategies to assemble pyrrole-based C-3-symmetric molecule. Here, ring-closing metathesis (RCM), Buchwald-Hartwig cross-coupling and Clauson-Kaas pyrrole synthesis have been used as key steps. Interestingly, readily available starting materials such as 4-aminoacetophenone, 4-bromo acetophenone and 4-nitro acetophenone have been used as starting materials. Grubbs' first generation catalyst (G-I) is useful for one-pot RCM and aromatization sequence without the involvement of additional reagents. We also report photophysical properties of these star shaped molecules. (C) 2018 Elsevier Ltd. All rights reserved.
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