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Titolo:
Solid-state photochromism and photoreactivity of o- and p-anisaldehydes. Remarkable stabilization of o-xylylenols
Autore:
Moorthy, JN; Mal, P; Natarajan, R; Venugopalan, P;
Indirizzi:
Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India IndianInst Technol Kanpur Uttar Pradesh India 208016 ttar Pradesh, India Panjab Univ, Dept Chem, Chandigarh 160014, India Panjab Univ Chandigarh India 160014 Dept Chem, Chandigarh 160014, India
Titolo Testata:
ORGANIC LETTERS
fascicolo: 10, volume: 3, anno: 2001,
pagine: 1579 - 1582
SICI:
1523-7060(20010517)3:10<1579:SPAPOO>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRYSTALLINE STATE; PHOTOCYCLIZATION; PHOTOENOLIZATION; KETONES; PHOTOCHEMISTRY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Moorthy, JN Indian Inst Technol, Dept Chem, Kanpur 208016, Uttar Pradesh, India Indian Inst Technol Kanpur Uttar Pradesh India 208016 , India
Citazione:
J.N. Moorthy et al., "Solid-state photochromism and photoreactivity of o- and p-anisaldehydes. Remarkable stabilization of o-xylylenols", ORG LETT, 3(10), 2001, pp. 1579-1582

Abstract

[GRAPHICS]All of the crystalline o-anisaldehyde derivatives 1 and 3 change to brick red color upon brief exposure to UV-vis radiation. The red color, attributed to (E)-xylylenol, is remarkably persistent for hours (ca, 10 h) in the case of Ic; such a long lifetime for the reactive o-xylylenols is unprecedented. In contrast, the p-anisaldehydes 2 undergo cyclization. Solid state photolysis of 2b affords the benzocyclobutenol 7b regioselectively, which is not accessible from solution phase photolysis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 22:34:54