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- W2389363642 abstract "Three natural coumarins were synthesized via in situ Wittig reaction of salicylaldehydes,triphenylphosphine and chloroethylacetate in satisfactory yields in solvent of ethanol condition.The optimum amount of salicylaldehydes are 10 mmol,triphenylphosphine 20 mmol and chloroethylacetate 22 mmol,the mixture was heated to 80 ℃ and the main reaction was conducted in 1 h.Experiments of killing fish show that 8-methoxy-2H-chromen-2-one and 6-hydroxy-2H-chromen-2-one have the potential use of selecive pond-cleaning." @default.
- W2389363642 created "2016-06-24" @default.
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- W2389363642 date "2008-01-01" @default.
- W2389363642 modified "2023-09-25" @default.
- W2389363642 title "Study on the Synthesis of Three Natural Coumarins and Selective Pond-cleaning" @default.
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