Synthesis of tertiary propargylic phosphonates by addition of trialkynylaluminum reagents to acyl phosphonates and investigation of their antimicrobial activities

Authors: MUHAMMED SHAKHAWOAT HOSSAIN, SIDIKA POLAT ÇAKIR, AYŞE BETÜL KARADUMAN, MUSTAFA YAMAÇ, AYHAN SITKI DEMİR

Abstract: A series of propargylic alcohols containing phosphonates was synthesized by addition reactions of tris-(propynyl) and tris-(phenylethynyl)aluminum reagents to acyl phosphonates in good yields. Aromatic moieties of the acyl phosphonates with electron-withdrawing groups generally resulted in better isolated chemical yield. Selected propargylic phosphonates were tested for antimicrobial activities. Compounds 3a and 3h showed noticeable antifungal activity, especially against molds.

Keywords: Acyl phosphonates, alkynyl organoaluminum, propargylic alcohols, tris-(phenylethynyl)aluminum, tris-(propynyl)aluminum, antimicrobial activity

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