通过二烷基硅烯的光化学环加成反应将薁转化为双环[4]并四烯和庚搭烯衍生物。
Transformation of azulenes to bicyclic [4]dendralene and heptafulvene derivatives via photochemical cycloaddition of dialkylsilylene.
作者信息
Kosai Tomoyuki, Ishida Shintaro, Iwamoto Takeaki
机构信息
Department of Chemistry, Graduate School of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan.
出版信息
Chem Commun (Camb). 2015 Jul 7;51(53):10707-9. doi: 10.1039/c5cc03424h.
PMID:26050797
Abstract
Regioselective cycloaddition of dialkylsilylene upon irradiation at 440 nm converts azulene and guaiazulene to bicyclic [4]dendralene and heptafulvene derivatives, respectively. Significant σ-π interactions in the resulting new silacycles were suggested using UV-vis spectra and theoretical calculations.
摘要
在440 nm光照下，二烷基硅烯的区域选择性环加成反应分别将薁和愈创薁转化为双环[4]树状并苯和庚搭烯衍生物。利用紫外可见光谱和理论计算表明，在生成的新硅环中存在显著的σ-π相互作用。
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