Regioselective [2 + 2]-photocycloaddition reactions of chiral tetronates-influence of temperature, pressure, and reaction medium.

作者信息

Fleck Martin, Yang Cheng, Wada Takehiko, Inoue Yoshihisa, Bach Thorsten

机构信息

Lehrstuhl für Organische Chemie 1, Technische Universität München, 85747 Garching, Germany.

出版信息

Chem Commun (Camb). 2007 Feb 28(8):822-4. doi: 10.1039/b613985j. Epub 2006 Nov 20.

The intramolecular [2 + 2]-photocycloaddition of the 1,3-divinyl-2-cyclopentyl tetronates was performed under various conditions to give perfect diastereoselectivity and a regioselectivity of up to 85/15 in the presence of gamma-cyclodextrin by differentiating the two chemically very similar double bonds of .