Note:
This reaction has important synthetic applications for the synthesis of
frameworks of numerous natural products, such as
β,γ-unsaturated carboxylic acids from photoexcitation of
α,β-unsaturated carboxylic acid derivatives, excluding the use of
strong bases, as required for similar isomerizations performed in the ground state.
Source:
PAC, 2007, 79, 293
(Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006))
on page 389