期刊
TETRAHEDRON LETTERS
卷 47, 期 39, 页码 7101-7106出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2006.07.056
关键词
hydroxylated and carboxylated aryl alkyl sulfides; thioethers; Grignard reagent; sulfur; halogen lithium exchange; lithium aryl thiolates
A simple one-pot synthesis of aryl alkyl sulfides from various bromobenzenes containing a hydroxy, hydroxymethyl, hydroxyethyl, and carboxylic acid group at -o, -m, and -p positions is reported here. The reaction proceeds through, in sequence, in situ protection of the hydroxy or carboxylic acid group by reaction with a Grignard reagent, lithium-halogen exchange, the formation of lithium thiolates, and the nucleophilic attack of lithium thiolates on various electrophiles without isolation of the thiolates, in one vessel. This procedure required a very short reaction time (1-1.5 h) and gave the corresponding sulfides in 75-97% yields. (c) 2006 Elsevier Ltd. All rights reserved.
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