Synthesis, Resolution, and Determination of Absolute Configuration of a Vaulted 2,2‘-Binaphthol and a Vaulted 3,3‘-Biphenanthrol (VAPOL)
作者:Jianming Bao、William D. Wulff、James B. Dominy、Michael J. Fumo、Eugene B. Grant、Alexander C. Rob、Mark C. Whitcomb、Siu-Man Yeung、Robert L. Ostrander、Arnold L. Rheingold
DOI:10.1021/ja952018t
日期:1996.1.1
thermolysis of phenylacetyl chloride in the presence of phenylacetylene or from the benzannulation of the pentacarbonyl(phenylmethoxymethylene)chromium(0) (15) with phenylacetylene which upon an acetylative workup gives O-acetyl-4-methoxy-2-phenyl-1-naphthol (16). The reductive cleavage of the acetoxy group in 16 was unexpectedly affected by aluminum chloride and ethanethiol which were used to cleave the methyl
开发了两种合成拱形联芳的方法,包括卡宾配合物与炔烃的反应和烯酮的 [2 + 2] 环加成。合成 3,3'-二苯基-[2,2'-联萘]-1,1'-二醇 (39) 和 2,2'-二苯基-[3,3'-联菲]-4 的最后一步,4'-二醇 (47) (VAPOL) 分别是 3-苯基-1-萘酚 (14) 和 2-苯基-4-菲酚 (28) 的苯酚偶联物。萘酚 14 可以由苯乙酰氯在苯乙炔存在下的热解制备,或由五羰基(苯甲氧基亚甲基)铬(0)(15)与苯乙炔的苯环化制备,苯乙炔经过乙酰化处理得到 O-乙酰-4-甲氧基- 2-苯基-1-萘酚 (16)。16中乙酰氧基的还原裂解出乎意料地受到用于裂解甲醚的氯化铝和乙硫醇的影响。以类似的方式,菲酚 28 可以由 1-萘基乙酰氯 (30) 或五羰基 (1-萘基甲氧基...