176693-97-3Relevant articles and documents
One-pot Synthesis of a Novel 1,1′-Bridged Bis(benzo[g]indole) Diester and the Preparation of Some of its Derivatives
Shyadligeri, Ashok S.,Gadaginamath, Guru S.,Subramanian
, p. 114 - 115 (2007/10/03)
Diethyl 5,5′-dihydroxy-2,2′-dimethyl-1,1′-(ethane-1,2-diyl)di(1H- benzo[g]indole)-3,3′-dicarboxylate (3) was prepared in a one-flask procedure by the condensation of diethyl 3,3′-(ethane-1,2-diyldiimino)dibutanoate (1) with 1,4-naphthoquinone (2) in 1:2 molar ratio; reaction of 3 separately with methyl iodide and ethyl chloroacetate afforded the corresponding O-alkylated derivatives 4 and 5, respectively.