Fig. 7: Synthetic applications of lignin-derived aryl halides. | Nature Communications

Fig. 7: Synthetic applications of lignin-derived aryl halides.

From: Producing aryl halides from lignin

Fig. 7

a Synthetic transformation of dibrominated product 4a. b Synthetic transformation of tetrachlorinated product 12a. Compounds 4a and 12a were obtained from commercial sources. DCM: dichloromethane. DMF: N,N-dimethylformamide. THF: tetrahydrofuran. Ts: p-toluenesulfonyl. DMEDA: N,N’-dimethyl-1,2-ethanediamine. DIEA: N,N-diisopropylethylamine. TEA: triethylamine. DMA: N,N-dimethylaniline. IPr·HCl: 1,3-bis (2,6-diisopropylphenyl) imidazolium chloride. dppf: 1,1’-bis(diphenylphosphino)ferrocene. B2(pin)2: bis(pinacolato)diboron.

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