Diferrocenyl(hydroxy)oxazepines and diferrocenyl-4-aza-1,3-dienes in the reactions of 2,3-diferrocenyl-1-methylthiocyclopropenylium iodide with aromatic and aliphatic bis-1,4-N,O-nucleophiles
作者:Jessica J. Sánchez García、Jose A. Castella-Lasaga、Marcos Flores-Álamo、José M. Méndez Stivalet、Elena I. Klimova
DOI:10.1016/j.poly.2019.07.019
日期:2019.10
A novel method for the synthesis of 3,4-diferrocenyl-2-methylthio-2,3-dihydrobenzo[6]-1,4-oxazepin-3-ols 7a-e (23-30%), 3,4-diferrocenylquinolin-8-ols 8b-d (9-16%), 1-E-2,3-diferrocenyl-4-(2-hydroxyphenyl)-1-methylthio-4-aza-1,3-dienes 9a-e (24-30%), cis-/trans-2,3-diferrocenyl-3-methylthioacroleins 10a,b (7-19%), S,R-5,6-diferrocenyl-7-methylthio-2,3,6,7-tetrahydro-1,4-oxazepin-6-ols 13b,d,e (28-33%) and E,Z- and Z,E-2,3-diferrocenyl-6-hydroxy-1-methylthio-4-aza-1.3-alkadienes 14a-e (29-34%) and 15a-e (10-13%) by reactions of 2,3-diferrocenyl-1-sulfanyl-cyclopropenylium iodide 2 with aromatic and aliphatic his-1,4-N,O-nucleophiles (1,2-aminophenols 3a-e and 1,2-aminoalcohols lla-e) in the presence of Et3N is presented. A new reaction for the transformation of the intermediate products of the addition of his-1,4-N,O-nucleophiles 3a-e and I la-e to the diferrocenylcyclopropenilium cation 2 in the positions C(1) and C(2) is found. The characterization of the new compounds was conducted by IR, H-1 and C-13 NMR spectroscopy, mass-spectrometry, elemental analysis, and X-ray diffraction. (C) 2019 Elsevier Ltd. All rights reserved.