Interesting Reactivity in the Thermolysis and Photolysis of 2,3-Diphenyl-1-naphthol
作者:Ilia A. Guzei、Howard E. Zimmerman、Sergey Shorunov、Lara C. Spencer
DOI:10.1007/s10870-008-9491-y
日期:2009.6
2,3-Diphenyl-1-naphthol (1) undergoes two unexpected reactions under different conditions. Compound (1) was heated in DMSO-d6 and underwent a Pummerer type thermal reaction to give two isomeric products, 1-(methylthio)methoxy-2,3-diphenyl naphthol-d5 which crystallized in the space group $$ P\bar\text1}}} $$ with a = 7.1610(9) Å, b = 11.2795(15) Å, c = 12.8905(17) Å, α = 114.049(2)°, β = 96.589(2)°, and γ = 102.945(2)°, and 2-(methylthio)methyl-2,3-diphenyl 1(2H)-naphthalenone-d5 which crystallized in the space group $$ P\bar\text1}}} $$ with a = 8.5981(5) Å, b = 10.4374(6) Å, c = 11.1078(6) Å, α = 78.748(2)°, β = 67.709(2)°, and γ = 83.184(2)°. Photolysis (254 nm) of (1) resulted in 2,2′,3,3′-tetraphenyl-1,1′-bi-2-naphthol which crystallized in the space group P21/c with a = 26.3616(11) Å, b = 10.1707(4) Å, c = 23.3376(9) Å, and β = 99.034(2)°. When 2,3-diphenyl-1-naphthol was heated in DMSO-d6 two unexpected isomers, 1-(methylthio)methoxy-2,3-diphenyl naphthol-d5 and the racemate 2-(methylthio)methyl-2,3-diphenyl 1(2H)-naphthalenone-d5 were produced. Photolysis in THF at 254 nm led to the unexpected product 2,2′,3,3′-tetraphenyl-1,1′-bi-2-naphthol. All structures were elucidated by X-ray crystallography.
2,3-二苯基-1-萘酚 (1) 在不同条件下发生两个意想不到的反应。化合物(1)在DMSO-d6中加热并进行Pummerer型热反应,得到两种异构产物1-(甲硫基)甲氧基-2,3-二苯基萘酚-d5,其在空间群$$ P\bar中结晶\text1}}} $$,其中 a = 7.1610(9) Å、b = 11.2795(15) Å、c = 12.8905(17) Å、α = 114.049(2)°、β = 96.589(2)° ,γ = 102.945(2)°,以及 2-(甲硫基)甲基-2,3-二苯基 1(2H)-萘酮-d5,其在空间群 $$ P\bar\text1}} 中结晶$$,其中 a = 8.5981(5) Å、b = 10.4374(6) Å、c = 11.1078(6) Å、α = 78.748(2)°、β = 67.709(2)° 和 γ = 83.184(2 )°。 (1) 光解 (254 nm) 生成 2,2',3,3'-四苯基-1,1'-双-2-萘酚,其在空间群 P21/c 中结晶,a = 26.3616(11) Å ,b = 10.1707(4) Å,c = 23.3376(9) Å,β = 99.034(2)°。当 2,3-二苯基-1-萘酚在 DMSO-d6 中加热时,会产生两种意想不到的异构体:1-(甲硫基)甲氧基-2,3-二苯基萘酚-d5 和外消旋体 2-(甲硫基)甲基-2,3-二苯基产生1(2H)-萘酮-d5。在 254 nm 处的 THF 中光解产生了意想不到的产物 2,2',3,3'-四苯基-1,1'-双-2-萘酚。所有结构均通过X射线晶体学阐明。