Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins

Eduard Dolusic; Stefan Smeets; Wim Dehaen

Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins

Eduard Dolusic, Stefan Smeets, Wim Dehaen

Namur Research Institute for Life Sciences

Résultats de recherche: Contribution à un événement scientifique (non publié) › Poster

Résumé

The attempted O-benzylation of tetrakis(3,5-bis(t-butyl)-4-hydroxyphenyl)porphyrin gave a product which was clearly having a different structure than expected. NMR, UV, X-ray and MS spectral analysis showed that it corresponded to a N-tetraalkylated oxidized product, having a tetrakis(quinomethide) structure. The reaction conditions were optimized to influence the degree and regioselectivity of this reaction with different alkylation reagents.

langue originale	Anglais
Pages	4th Sigma-Aldrich Organic Synthesis Meeting, Abstracts, Spa, Belgium, 07.-08.12.2000
Nombre de pages	1
Etat de la publication	Publié - 2000
Evénement	4th Sigma-Aldrich Organic Synthesis Meeting - Spa, Belgique Durée: 7 déc. 2000 → …

Une conférence

Une conférence	4th Sigma-Aldrich Organic Synthesis Meeting
Pays/Territoire	Belgique
La ville	Spa
période	7/12/00 → …

1 Poster
1 Article

Porphotetramethenes with 1,3-alternate conformation of pyrrole rings from oxidative N-alkylation of porphyrin tetraphenols
Dolusic, E., Toppet, S., Smeets, S., Van Meervelt, L., Tinant, B. & Dehaen, W., 2003, Dans: Tetrahedron. 59, 3, p. 395-400 6 p.
Résultats de recherche: Contribution à un journal/une revue › Article › Revue par des pairs

Accès ouvert
File
200 Téléchargements (Pure)
Porphotetramethenes (Calix[4]pyrroletetraquinomethides) from Oxidative N-Alkylation of Porphyrin Tetraphenols
Dolusic, E., Toppet, S., Smeets, S., Van Meervelt, L., Tinant, B. & Dehaen, W., 2001, p. 5th Sigma-Aldrich Organic Synthesis Meeting, Abstracts, Spa, Belgium, 06.-07.12.2001, pp. 11-11. 1 p.
Résultats de recherche: Contribution à un événement scientifique (non publié) › Poster

2 Participation à une conférence, un congrès

5th Sigma-Aldrich Organic Synthesis Meeting
Eduard Dolusic (Poster)
6 déc. 2001 → 7 déc. 2001
Activité: Participation ou organisation d'un événement › Participation à une conférence, un congrès
4th Sigma-Aldrich Organic Synthesis Meeting
Eduard Dolusic (Poster)
7 déc. 2000 → 8 déc. 2000
Activité: Participation ou organisation d'un événement › Participation à une conférence, un congrès

PhD in organic chemistry Katholieke Universiteit Leuven, Belgium, 2000 - 2004 (Prof. Wim Dehaen)
Auteur: Dolusic, E., 2004
Student thesis: Doc types › Docteur en Sciences

Contient cette citation

@conference{eb68035fc5c8401bb0d97e018979de3a,

title = "Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins",

abstract = "The attempted O-benzylation of tetrakis(3,5-bis(t-butyl)-4-hydroxyphenyl)porphyrin gave a product which was clearly having a different structure than expected. NMR, UV, X-ray and MS spectral analysis showed that it corresponded to a N-tetraalkylated oxidized product, having a tetrakis(quinomethide) structure. The reaction conditions were optimized to influence the degree and regioselectivity of this reaction with different alkylation reagents.",

keywords = "porphyrin, quinodimethane, oxidative alkylation",

author = "Eduard Dolusic and Stefan Smeets and Wim Dehaen",

year = "2000",

language = "English",

pages = "4th Sigma--Aldrich Organic Synthesis Meeting, Abstracts, Spa, Belgium, 07.--08.12.2000",

note = "4th Sigma-Aldrich Organic Synthesis Meeting ; Conference date: 07-12-2000",

}

Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins. / Dolusic, Eduard; Smeets, Stefan; Dehaen, Wim.
2000. 4th Sigma-Aldrich Organic Synthesis Meeting, Abstracts, Spa, Belgium, 07.-08.12.2000 Poster présenté � 4th Sigma-Aldrich Organic Synthesis Meeting, Spa, Belgique.

Résultats de recherche: Contribution à un événement scientifique (non publié) › Poster

TY - CONF

T1 - Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins

AU - Dolusic, Eduard

AU - Smeets, Stefan

AU - Dehaen, Wim

PY - 2000

Y1 - 2000

N2 - The attempted O-benzylation of tetrakis(3,5-bis(t-butyl)-4-hydroxyphenyl)porphyrin gave a product which was clearly having a different structure than expected. NMR, UV, X-ray and MS spectral analysis showed that it corresponded to a N-tetraalkylated oxidized product, having a tetrakis(quinomethide) structure. The reaction conditions were optimized to influence the degree and regioselectivity of this reaction with different alkylation reagents.

AB - The attempted O-benzylation of tetrakis(3,5-bis(t-butyl)-4-hydroxyphenyl)porphyrin gave a product which was clearly having a different structure than expected. NMR, UV, X-ray and MS spectral analysis showed that it corresponded to a N-tetraalkylated oxidized product, having a tetrakis(quinomethide) structure. The reaction conditions were optimized to influence the degree and regioselectivity of this reaction with different alkylation reagents.

KW - porphyrin

KW - quinodimethane

KW - oxidative alkylation

M3 - Poster

SP - 4th Sigma-Aldrich Organic Synthesis Meeting, Abstracts, Spa, Belgium, 07.-08.12.2000

T2 - 4th Sigma-Aldrich Organic Synthesis Meeting

Y2 - 7 December 2000

ER -

Oxidative Alkylation of tetrakis(4-Hydroxyaryl)porphyrins

Résumé

Une conférence

Empreinte digitale

Résultat de recherche

Porphotetramethenes with 1,3-alternate conformation of pyrrole rings from oxidative N-alkylation of porphyrin tetraphenols

Porphotetramethenes (Calix[4]pyrroletetraquinomethides) from Oxidative N-Alkylation of Porphyrin Tetraphenols

Activités

5th Sigma-Aldrich Organic Synthesis Meeting

4th Sigma-Aldrich Organic Synthesis Meeting

Thèses de l'étudiant

PhD in organic chemistry Katholieke Universiteit Leuven, Belgium, 2000 - 2004 (Prof. Wim Dehaen)

Contient cette citation