71088-89-6Relevant academic research and scientific papers
NOVEL PROCESSES FOR THE PREPARATION OF SUBSTITUTED PROPENONE DERIVATIVES
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Page 3, (2010/11/30)
The present invention provides industrial and commercial processes for the preparation of 2-acyl-5-benzylfuran derivatives, 1,2,4-triazole-3-carboxylic acid ester derivatives and propenone derivatives having anti-HIV activities and usuful crystals thereof. wherein R1, R2 and R4 each is independently hydrogen or the like; A is CR6 or N; R6 is hydrogen or the like; Q is a protecting group; and L is a leaving group.
The Generation and Chemistry of Dianions derived from Furancarboxylic Acids
Knight, David W.,Nott, Andrew P.
, p. 1125 - 1131 (2007/10/02)
Methods for the generation of the dianionic species lithium 5-lithiofuran-2-carboxylate (5) and lithium 2-lithiofuran-3-carboxylate (21) from furan-2- and furan-3-carboxylic acids recpectively are described.The reactions of (5) and (21) with a range of electrophiles have been examined; in general these are very efficient with aldehydes and ketones but not as satisfactory with alkyl halides and epoxides.The dianions do not couple with allylic or benzylic halides, nor with nitriles or orthoesters.The generation of lithium-5-lithio-3-methylfuran-2-carboxylate (15) from 3-methyl furan-2-carboxylic acid is also described; the chemistry of (15) is very similar to (5) derived from furan-2-carboxylic acid.
