An unexpected allomer of chlorophyll: 13(2)(S)-hydroxy-10-methoxychlorophyll b

Authors
Hyvarinen, K Helaja, J Hynninen, PH
Citation
K. Hyvarinen et al., An unexpected allomer of chlorophyll: 13(2)(S)-hydroxy-10-methoxychlorophyll b, TETRAHEDR L, 39(52), 1998, pp. 9813-9814
Citations number
11
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
39
Issue
52
Year of publication
1998
Pages
9813 - 9814
Database
ISI
SICI code
0040-4039(199812)39:52<9813:AUAOC1>2.0.ZU;2-R
Abstract
The allomerization of chlorophyll b in methanol produced 13(2)(S)-hydroxy-1 0-methoxychlorophyll b in a yield of ca. 8%. The formation of this allomer was totally unexpected, as 10-substituted chlorophylls have never been repo rted before. The structure of the new chlorophyll b derivative was determin ed on the basis of UV/Vis, FAB-MS, H-1 NMR and 2D POESY NMR spectra. This l etter focuses on the NMR analysis. (C) 1998 Elsevier Science Ltd. All right s reserved.