81289-18-1Relevant articles and documents
A green metal-free "one-pot" microwave assisted synthesis of 1,4-dihydrochromene triazoles
Alves, Tania M. F.,Jardim, Guilherme A. M.,Ferreira, Marco A. B.
, p. 10336 - 10339 (2021/03/26)
The synthesis of several 4-aryl-1,4-dihydrochromene-triazoles was achieved via a metal-free "one-pot"procedure using PEG400 as the sole solvent in an eco-friendly process. Using microwave irradiation, the triazole derivatives were obtained in good yields and short reaction times starting from readily accessible building blocks.
Sodium Borohydride Reduction of 3-Nitro-2-substituted-phenyl-2H-benzopyrans
Arora, P. K.,Bhaduri, A. P.
, p. 951 - 954 (2007/10/02)
Reaction of 3-nitro-2-substituted-phenyl-2H-benzopyrans (1-8) with NaBH4 at 5-10 deg C followed by reduction of the nitro group with hydrazine hydrate in the presence of Raney-nickel furnishes 3-amino-2-substituted-phenyl-3,4-dihydro-2H-benzopyrans