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Studies in phenolic mannich bases - reaction with acetylenes

โœ Scribed by K.K. Balasubramanian; S. Selvaraj

Book ID
104213113
Publisher
Elsevier Science
Year
1980
Tongue
French
Weight
123 KB
Volume
21
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

Abetract: 3-Formyl, 3-benzoyl and 2,3_dibenzoyl-4H-Chromenes have been aynthesised by the reaction of phenolic Mannich bases with electron-deficient acetylenic systems.

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Recewed 11 March X980, m f%naI rbrm 25 July I981 Subxxnlhsnetre absorption measurements are reported for SL,, phenohc Sfanxuch bases m the regton 20-90 czS1 at room temperature. Thri?e drstmct absorphon peaks are obsened around 45,65 and 85 cm-l for aIi these compounds. Based on the present data and