26239-18-9Relevant academic research and scientific papers
Multi-step synthesis of benzopyranones via a key step involving reaction of the intermediate compound with phenyltrimethylammonium tribromide
Javed,Kahlon
, p. 627 - 630 (2002)
Base catalysed condensation of a substituted 2-hydroxyacetophenone with acetic anhydride and sodium acetate followed by cyclization of the intermediate with acid gave substituted 3-acetyl-2-methyl-4H-1-benzopyran-4-ones. These were then brominated with phenyltrimethylammonium tribromide (PTT) to yield the desired 3-(2-bromoacetyl)benzopyran-4-ones. The latter compound on treatment with primary and secondary aryl or alkyl amines, gave the corresponding benzopyran-4-one derivatives.
Volatiles from the xylarialean fungus Hypoxylon invadens
Dickschat, Jeroen S.,Wang, Tao,Stadler, Marc
, p. 734 - 746 (2018/04/16)
The volatiles emitted by agar plate cultures of the xylarialean fungus Hypoxylon invadens were investigated by use of a closed loop stripping apparatus in combination with GC-MS. Several aromatic compounds were found that could only be identified by comparison to all possible constitutional isomers with different ring substitution patterns. For the set of identified compounds a plausible biosynthetic scheme was suggested that gives further support for the assigned structures.
