ChemInform Abstract: Intramolecular Photocycloaddition of 3-(3-Butenyl)cyclohex-2-enone and 3-(2-Propenoxy)cyclohex-2-enone in Zeolites

Autor:	Tae-Hee Noh, Kyungin Choi, Kyungsun Choi, Hyeoksoon Kwon
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Adsorption Chemistry Homogeneous Intramolecular force Molecule General Medicine Photochemistry Enone
Zdroj:	ChemInform. 30
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.199928063
Popis:	The effects of zeolites on the intramolecular [2+2] photocycloadditions of 3-(3-butenyl)cyclohex-2-enone ( 1a) and 3-(2-propenoxy)cyclohex-2-enone (1b) were investigated. When 1a adsorbed in cation-exchanged zeolites X and Y was irradiated through a Pyrex filter, the products from the 1,6-ring closure biradical increased compared to the results from the photoreaction in homogeneous solutions. In the intramolecular 1,5-ring closure photocycloaddition of 1a and 1b, the products from the cis-fused intermediates increased in zeolites X and Y. The regiochemical and stereochemical outcomes of the photocycloadditions in the zeolites were interpreted by the binding of the guest molecules with the cations in the supercages.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9eb5a6acc9a9a984fd6fb3889e2abcb8 https://doi.org/10.1002/chin.199928063 Zobrazit plný text záznamu Plný text