857248-74-9

Upstream product

• 130573-43-2 (2,2-dimethyl-6-methylene-6H-1,3-dioxin-4-yloxy)trimethylsilane 
• 14371-10-9 (E)-3-phenylpropenal 
• 5394-63-8 2,2,6-trimethyl-4H-1,3-dioxin-4-one 
• 108-18-9 diisopropylamine 
• 328012-09-5 (E)-1-(1H-benzo[d][1,2,3]triazol-1-yl)-3-phenylprop-2-en-1-one 
• 412277-20-4 6-((E)-2-Hydroxy-4-phenyl-but-3-enyl)-2,2-dimethyl-[1,3]dioxin-4-one 

Downstream Products

• 2082-94-2 4-hydroxy-6-<(E)-2-phenylethenyl>-2H-pyran-2-one 

Relevant academic research and scientific papers

Antitumor agents 287. Substituted 4-amino-2H-pyran-2-one (APO) analogs reveal a new scaffold from neo-tanshinlactone with in vitro anticancer activity

4-Amino-2H-benzo[h]chromen-2-one (ABO) and 4-amino-7,8,9,10-tetrahydro-2H- benzo[h]chromen-2-one (ATBO) analogs were found to be significant in vitro anticancer agents in our previous research. Our continuing study has now discovered a new simplified (monocyclic rather than tricyclic) class of cytotoxic agents, 4-amino-2H-pyran-2-one (APO) analogs. By incorporating various substituents on the pyranone ring, we have established preliminary structure-activity relationships (SAR). Analogs 19, 20, 23, and 26-30 displayed significant tumor cell growth inhibitory activity in vitro. The most active compound 27 exhibited ED50 values of 0.059-0.090 μM.

Facile syntheses of 2,2-dimethyl-6-(2-oxoalkyl)-1,3-dioxin-4-ones and the corresponding 6-substituted 4-hydroxy-2-pyrones

A variety of 2,2-dimethyl-6-(2-oxoalkyl)-1,3-dioxin-4-ones 5a-l and the corresponding 6-substituted 4-hydroxy-2-pyrones 3a-l were prepared in high yields under mild reaction conditions by the reaction of 2,2,6-trimethyl-1,3- dioxin-4-one 4 with 1-acylbenz

Synthesis of 6-substituted 4-hydroxy-2-pyrones from aldehydes by addition of an acetoacetate equivalent, Dess-Martin oxidation and subsequent cyclization

A three step procedure for the synthesis of 6-substituted 4-hydroxy-2-pyrones 2 from aldehydes 1 is described. An acetoacetate equivalent 3 was added to the corresponding aldehyde (10 examples) in a vinylogous Mukaiyama aldol addition (72-99%). The intermediate alcohols 4 were oxidized to the ketones 5 using the Dess-Martin method (67%-quant,). A final thermal cyclization of compounds 5 yielded the title compounds 2 (61-92%; 40-85% overall).