期刊
TETRAHEDRON LETTERS
卷 49, 期 26, 页码 4113-4115出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2008.04.128
关键词
chlorophyll; Bestmann-Ohira reagent; visible absorption spectra; tetrapyrrole
3-Ethynyl-chlorin was prepared from methyl pyropheophorbide-d using Bestmann-Ohira reagent. The mono-substituted acetylene was subjected to copper-free, Pd-mediated coupling to form chlorin derivatives possessing a series of substituted ethynyl groups at the C3-position. Its 1,3-dipolar cycloadditions with azido compounds were also demonstrated. (C) 2008 Elsevier Ltd. All rights reserved.
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