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Paper | Special issue | Vol 37, No. 1, 1994, pp.323-329
Published online, 1st January, 1970
DOI: 10.3987/COM-93-S8
Synthesis of Some Novel Naphthoquinone Fused Selenazoles and 2-Amino-3-alkylseleno-1,4-naphthoquinones

Ming-De Ruan,* Zheng-Jie Wu, Wei-Qiang Fan,* Xun-Jun Zhou, and Rong-Shen Ma

*Department of Chemistry, Hangzhou University, Zhejiang, China 310028, China


A variety of 2-aryl-4,9-dioxonaphtho[2,3-d]selenazoles (4) are prepared from reactions of appropriate aromatic aldehydes and 2-amino-3-seleno-1,4-naphthoquinone sodium salt (3), which is prepared from 2-amino-3-chloronaphthoquinone (2), sodium and selenium powder without isolation. The intermediate (3) reacts with a range of alkyl halides to give 2-amino-3-alkylseleno-1,4-naphthoquinones (5).