Remarkably high homoselectivity in [2 + 2] photodimerization of trans-cinnamic acids in multicomponent systems
作者:Thanh Binh Nguyen、Ali Al-Mourabit
DOI:10.1039/c6pp00201c
日期:2016.9
[2 + 2] homoadducts were exclusively obtained with total regio- and stereo-selectivities when a suspension of several solid photoactive trans-cinnamic acids in cyclohexane was stirred and irradiated.
Templating Photodimerization of <i>trans</i>-Cinnamic Acids with Cucurbit[8]uril and γ-Cyclodextrin
作者:Mahesh Pattabiraman、Arunkumar Natarajan、Lakshmi S. Kaanumalle、V. Ramamurthy
DOI:10.1021/ol047866k
日期:2005.2.1
Cucurbit[8]uril and gamma-cyclodextrin are able to align two olefin molecules in a head-head fashion within their large cavities. Excitation of such templated olefins results in syn head-head cyclobutanes in nearly quantitative yields. The methodology revealed here works with transcinnamic acids that do not dimerize either in solution or in the solid state and with the ones that yield only anti head-tail dimer in the solid state.