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Interconversion of the Pallambins through Photoinduced Rearrangement

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journal contribution
posted on 16.11.2012, 00:00 authored by Jiao-Zhen Zhang, Rong-Xiu Zhu, Gang Li, Li-Ning Wang, Bin Sun, Wen-Fang Chen, Lei Liu, Hong-Xiang Lou
A new photoinduced interconversion of four naturally occurring 19-nor-7,8-secolabdane diterpenoids was discovered and analyzed. The photochemical mechanism, intramolecular diradical rearrangement reaction, was investigated by time-lapse monitoring of the end product formations with HPLC and UV, as well as detailed theoretical calculations.