Salicylaldimine dimers derived from 2-H 2 NC 6 H 4 Bpin (pin = 1,2-O 2 C 2 Me 4 )

Salicylaldimine dimers derived from 2-H 2 NC 6 H 4 Bpin (pin = 1,2-O 2 C 2 Me 4 )

Condensation of salicylaldehyde (2-HOC 6 H 4 C(O)H) with 2-H 2 NC 6 H 4 Bpin (pin = 1,2-O 2 C 2 Me 4 ) afforded the macrocyclic dimer 1 with an OBOBO structural unit. Similar reactivity with substituted salicylaldehyde derivatives gave the corresponding Schiff bases 2–6. Crystals of 1 were triclinic...

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Veröffentlicht in:Canadian journal of chemistry 2005-08, Vol.83 (8), p.1158-1163
Hauptverfasser: Webb, Jonathan D, Darwish, Hanni A, Zhang, Haiwen, Wheaton, Susan L, Baerlocher, Felix J, Vogels, Christopher M, Decken, Andreas, Westcott, Stephen A
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Sprache:eng
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Zusammenfassung:Condensation of salicylaldehyde (2-HOC 6 H 4 C(O)H) with 2-H 2 NC 6 H 4 Bpin (pin = 1,2-O 2 C 2 Me 4 ) afforded the macrocyclic dimer 1 with an OBOBO structural unit. Similar reactivity with substituted salicylaldehyde derivatives gave the corresponding Schiff bases 2–6. Crystals of 1 were triclinic, space group P-1, a = 9.7915(4) Å, b = 10.8569(5) Å, c = 12.8445(6) Å, α = 102.067(1)°, β = 96.011(1)°, γ = 90.458(1)°, Z = 2. All new compounds have been tested for their antifungal activity against Aspergillus niger and Aspergillus flavus.Key words: antifungal, boron, dehydration, heterocycles, Schiff bases.
ISSN:0008-4042
1480-3291
DOI:10.1139/v05-124