A convenient synthesis of 2-formyl-1, 8: 4, 5-bis (methylenedioxy) naphthalene

AH Zhao, DF Xu, W Zhuo, Z Rao…

Index: Zhao, Ai-Hong; Xu, De-Feng; Zhuo, Wen; Rao, Zhen; Li, Shao-Shun Journal of Chemical Research, 2007 , # 11 p. 647 - 648

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Abstract

2, 3-Dihydronaphazarin was prepared from 1, 4-dimethoxybenzene and dichloromaleic anhydride. Reaction with bromochloromethane gave 1, 8: 4, 5-bis (methylenedioxy) naphthalene which with NBS, gave 2-bromo-1, 8: 4, 5-bis-(methylenedioxy) naphthalene. Reaction of the Grignard derivative with DMF afforded 2-formyl-1, 8: 4, 5-bis (methylene- dioxy) naphthalene. This method had several advantages compared with the reported ...