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Pregled bibliografske jedinice broj: 564862

Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles


Šagud, Ivana; Faraguna, Fabio; Marinić, Željko; Šindler-Kulyk, Marija
Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles // Program & Book of Abstract, Math/Chem/Comp 2011 / / Graovac, Ante ; Pokrić, Biserka (ur.).
Dubrovnik, Hrvatska: Hum naklada d.o.o., 2011. str. 41-41 (ostalo, međunarodna recenzija, sažetak, znanstveni)


CROSBI ID: 564862 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles

Autori
Šagud, Ivana ; Faraguna, Fabio ; Marinić, Željko ; Šindler-Kulyk, Marija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Program & Book of Abstract, Math/Chem/Comp 2011 / / Graovac, Ante ; Pokrić, Biserka - : Hum naklada d.o.o., 2011, 41-41

ISBN
978-953-6954-23-0

Skup
Math/Chem/Comp 2011

Mjesto i datum
Dubrovnik, Hrvatska, 13-18.06.2011

Vrsta sudjelovanja
Ostalo

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
oxazoles; photoelectrocyclization; heterostilbenes; styryloxazoles

Sažetak
A new synthetic approach is presented for the synthesis of naphthoxazoles and fused heterobenzoxazoles. The starting 5−(aryl/furyl/thienyl/pyridyl ethenyl)oxazoles are prepared from the corresponding α, β−unsaturated aldehydes using Van Leusen reagent in very good yields and are transformed into naphthoxazoles and fused heterobenzoxazoles on irradiation under aerobic conditions and in the presence of iodine. All new compounds are characterized by spectroscopic methods. As the starting aldehydes for the reactions with TosMIC were all in trans configuration the obtained 5 − aryl/heteroaryl − ethenyloxazoles retained the trans configuration which is clearly seen from the coupling constants of ethylene protons (J = 16 Hz) in 1 H NMR. It is interesting that H − 2 and H − 4 oxazole protons of all Ar/Het − ethenyloxazole derivatives appear at the same δvalues, around 7.8 and 7.1 ppm, respectively. The two ethylene protons were also found in all examples in a similar narrow region as two doublets at 6.7 − 7.0 and 6.9 − 7.1 ppm, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
098-0982929-2917 - Spektroskopija NMR i modeliranje bioaktivnih molekula (Plavšić, Dejan, MZOS ) ( POIROT)
125-0982933-2926 - Heteropolicikli, strukturne osnove za bioaktivne spojeve. Sinteza i fotokemija (Škorić, Irena, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Avatar Url Fabio Faraguna (autor)

Avatar Url Ivana Šagud (autor)

Avatar Url Željko Marinić (autor)


Citiraj ovu publikaciju

Šagud, Ivana; Faraguna, Fabio; Marinić, Željko; Šindler-Kulyk, Marija
Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles // Program & Book of Abstract, Math/Chem/Comp 2011 / / Graovac, Ante ; Pokrić, Biserka (ur.).
Dubrovnik, Hrvatska: Hum naklada d.o.o., 2011. str. 41-41 (ostalo, međunarodna recenzija, sažetak, znanstveni)
Šagud, I., Faraguna, F., Marinić, Ž. & Šindler-Kulyk, M. (2011) Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles. U: Graovac, A. & Pokrić, B. (ur.)Program & Book of Abstract, Math/Chem/Comp 2011 /.
@article{article, year = {2011}, pages = {41-41}, keywords = {oxazoles, photoelectrocyclization, heterostilbenes, styryloxazoles}, isbn = {978-953-6954-23-0}, title = {Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles}, keyword = {oxazoles, photoelectrocyclization, heterostilbenes, styryloxazoles}, publisher = {Hum naklada d.o.o.}, publisherplace = {Dubrovnik, Hrvatska} }
@article{article, year = {2011}, pages = {41-41}, keywords = {oxazoles, photoelectrocyclization, heterostilbenes, styryloxazoles}, isbn = {978-953-6954-23-0}, title = {Photochemical approach to naphthoxazoles and fused hetero-benzoxazoles from 5-(phenyl/heteroarylethenyl)oxazoles}, keyword = {oxazoles, photoelectrocyclization, heterostilbenes, styryloxazoles}, publisher = {Hum naklada d.o.o.}, publisherplace = {Dubrovnik, Hrvatska} }




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