摘要:
Treatment of benzo[b]cyclohepta[e][1,4]oxazine (4) with 1.2 equiv. of dipropylenetriamine (5a) in ethanol at 80-degrees-C gave 6,7,8,9,11,12,13,20,21, 22,23,25,26,27-tetradecahydrodicyclohepta[b,m][1,4,8,12,15,19]hexaazacyclodocosine (7a). Similar reactions of 4 with N,N-bis(3-aminopropyl)methyl-amine (5b), bis(3-aminopropyl) ether (5C), 1,2-bis(2-aminoethoxy)ethane (6b), and cystamine (6c) afforded similar tropocoronands (7b, 7c, 8a, and 8b), respectively, while the reactions of 4 with an excess of these amines gave the corresponding tropopodands (11a, 11b, 11c, 12a, and 12b). The reaction of 4 with diethylenetriamine (6a) yielded tricyclic compound (10) via bicyclic pyrazino compound (9). A single-crystal X-ray diffraction analysis of the nickel(II)-complex (13) obtained from 7a was made.