17-Bromo-14-tert-butyl-16-methoxy-7-methyl-3,6,10-trithia-tricyclo[10.3.1.15,8]heptadeca-1(16),5(17),7,12,14-pentaene 3,3,10,10-tetraoxide 480.0 ℃
、106.66 Pa
条件下,
以25%的产率得到6-tert-butyl-8,9-dihydro-1-methylphenaleno<1,9-bc>thiophene
参考文献:
名称:
Synthesis and conformation of dithia[3]metacyclo[3]thiophenophanes and [2]metacyclo[2]thiophenophanes
摘要:
Dithia[3]metacyclo[3]- -(2,3)-, -(2,4)-, -(2,5)-, and -(3,4)thiophenophanes were prepared by dithiol bis-alkylations and were oxidized with m-chloroperbenzoic acid to the corresponding tetraoxides. Pyrolysis of the tetraoxides under a reduced pressure gave the corresponding [2]metacyclo[2]thiophenophanes together with many unexpected compounds. The conformations of the obtained products are also discussed.