Synthesis of substituted naphthalenes from α-substituted ketones and 1,2-bis(halomethyl)benzenes including a rearrangement aromatization of benzo[c]oxepine
An efficient and practical method for the synthesis of cyano, sulfonyl and phosphoryl substituted naphthalene derivatives via the rearrangement aromatization of benzo[c]oxepine has been developed. The system holds the advantages of metal catalysts free, and mild reaction conditions.
通过苯并[ c ]氧杂环丁烷的重排芳构化合成氰基,磺酰基和磷酰基取代的萘衍生物的有效和实用的方法已经开发出来。该系统具有无金属催化剂和反应条件温和的优点。
HIRAKI YUJI; ITO KAZUHISA; HARADA TADAO; TAI AKIRA, CHEM. LETT., 1981, NO 1, 131-132,
作者:HIRAKI YUJI、 ITO KAZUHISA、 HARADA TADAO、 TAI AKIRA
DOI:——
日期:——
Cannon,J.R. et al., Australian Journal of Chemistry, 1973, vol. 26, p. 799 - 808
作者:Cannon,J.R. et al.
DOI:——
日期:——
Enantioface Differentiating Hydrogenation of β-Ketosulfone
作者:Yuji Hiraki、Kazuhisa Ito、Tadao Harada、Akira Tai
DOI:10.1246/cl.1981.131
日期:1981.1.5
The enantioface-differentiating hydrogenation of β-ketosulfone (I) over (R,R)-tartaric acid-NaBr-modified Raney nickel ((R,R)-TA-NaBr-MRNi) gave β-nydroxysulfone (II) in quantitative chemical yield and 70% optical yield. The optically pure II was obtained from the hydrogenation product by the preferential recrystallization method.