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Table 3 Comparison between different methods for synthesis of 2-(aryl or alkyl)-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazine derivatives

From: Efficient synthesis of 1,3-naphtoxazine derivatives using reusable magnetic catalyst (GO-Fe3O4–Ti(IV)): anticonvulsant evaluation and computational studies

Entry Conditions Yield (%) Refs.
Catalyst/Temp/Time/Solvent
1 Nano-Al2O3/BF3/Fe3O4/R.T/20 min/Water 92 [6]
2 Fe3O4@nano-dextrin/Ti(IV)/R.T/7 min/Water 95 [33]
  Fe3O4@NCs/TiCl/R.T/3 min/solvent-free 98 [35]
3 Nano-Fe3O4@walnut shell/Cu(II)/60 °C/25 min/solvent-free 93 [34]
4 GO-Fe3O4-Ti(IV)/60 °C/15 min/solvent-free 97 This work