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. 2017 May 20;42(2):25–31. doi: 10.1584/jpestics.D16-100

Fig. 2. Overall reaction pathway for synthesis of tolprocarb derivatives. Alkyl=ethyl or methyl; Boc=tert-butoxycarbonyl; DEAD=diethyl azodicarboxylate; X=N (urea), O (carbamate), C (amide) or S (thiocarbamate); A=chloroformates, p-nitrophenylcarbonates, O-(p-nitrophenyl)thiocarbonates, isocyanates, isothiocyanates, carbamoyl chlorides, acid chlorides, acid anhydrides or mixed acid anhydrides.

Fig. 2. Overall reaction pathway for synthesis of tolprocarb derivatives. Alkyl=ethyl or methyl; Boc=tert-butoxycarbonyl; DEAD=diethyl azodicarboxylate; X=N (urea), O (carbamate), C (amide) or S (thiocarbamate); A=chloroformates, p-nitrophenylcarbonates, O-(p-nitrophenyl)thiocarbonates, isocyanates, isothiocyanates, carbamoyl chlorides, acid chlorides, acid anhydrides or mixed acid anhydrides.