One-Pot Synthesis of 1,4-Diarylnaphthalenes via a Wittig-Horner Reaction/[4+2] Cycloaddition/Dehydrogenation Sequence
作者:Yanguang Wang、Zhengbo Chen、Wangge Shou
DOI:10.1055/s-0028-1083356
日期:2009.4
A one-pot synthesis of 1,4-diarylnaphthalenes from cinnamaldehydes, dimethyl benzylphosphonates, and benzenediazonium-2-carboxylate is described. The tandem process involves the Wittig-Horner reaction of the cinnamaldehyde with the benzylphosphonate, [4+2] cycloaddition of the thus-formed diene with benzyne, and subsequent dehydrogenation. The procedure is general and efficient and the substrates are
描述了由肉桂醛,二甲基苄基膦酸酯和苯重氮-2-羧酸酯一锅法合成1,4-二芳基萘。串联过程涉及肉桂醛与苄基膦酸酯的Wittig-Horner反应,由此形成的二烯与苯炔的[4 + 2]环加成以及随后的脱氢。该过程是通用且有效的,并且衬底容易获得。 二苯基萘-串联反应-Wittig-Horner反应-环加成反应-苯并