Capperucci, Antonella; Degl'innocenti, Alessandro; Funicello, Maria, Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 96, # 1-4, p. 479 - 480
A new synthesis of monomeric o-amino thioaldehydes of thiophene, benzo[b]thiophene, furan and benzo[b]furan by reaction the corresponding o-azido aldehydes with hexamethyldisilathiane in neat acetonitrile and/or in methanol in the presence of hydrochloric acid at room temperature is reported.
[EN] TRICYCLIC COMPOUND, AND PREPARATION METHOD THEREFOR AND MEDICAL USE THEREOF<br/>[FR] COMPOSÉ TRICYCLIQUE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION MÉDICALE<br/>[ZH] 三环化合物及其制备方法和医药用途
申请人:THE NAT INSTITUTES OF PHARMACEUTICAL R&D CO LTD
2-Amidinylindole-3-carbaldehydes: synthesis of new tetracyclic compounds containing the pyrrolo[1,2-c]1,4-diazepine ring
作者:Francesca Clerici、Emanuela Erba、Donato Pocar
DOI:10.1016/s0040-4020(03)00146-7
日期:2003.3
2-Amidinylindol-3-carbaldehydes bearing an alpha-alkoxycarbonyl substituent on the cyclic-tertiary amine moiety were prepared. Pyrolysis of these amidines in diethylenglycol-monoethyl ether produced mainly a pyrrolo[ 1',2'-1,2]-1,4-diazepino[5,6-b]indol-7,11-dione. A similar result was obtained starting from 2-amidinylbenzofuran-3-carbaldehyde. (C) 2003 Elsevier Science Ltd. All rights reserved.
Deglinnocenti Alessandro, Funicello Maria, Scafato Patrizia, SpagnoloPier+, Chem. Lett., (1994) N 10, S 1873-1876