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Transition‐Metal‐Promoted Chemoselective Photoreactions at the Cucurbituril Rim
Author(s) -
Koner Apurba L.,
Márquez Cesar,
Dickman Michael H.,
Nau Werner M.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201005317
Subject(s) - cucurbituril , chemistry , cyclopentene , supramolecular chemistry , ternary operation , photodissociation , transition metal , photochemistry , combinatorial chemistry , stereochemistry , molecule , organic chemistry , catalysis , computer science , programming language
When included in a supramolecular barrel with transition‐metal ions as lids, bicyclic azoalkanes undergo phase‐selective photolysis to afford new photoproducts and photoproduct distributions. In the presence of the macrocycle cucurbit[7]uril and Ag + ions, 2,3‐diazabicyclo[2.2.1]hept‐2‐ene forms a ternary host–guest inclusion complex in which the cations are coordinated to the carbonyl rims of the host. Direct photolysis of this ternary complex provides cyclopentene as a new photoproduct.