1.1
Reagents:
Butyllithium
Solvents:
Tetrahydrofuran
,
Hexane
;
10 min, -78 °C; 30 min, -78 °C; 1 h, rt; rt → -78 °C
1.2
Solvents:
Dimethylformamide
;
-78 °C; overnight, > -78 °C
1.3
Reagents:
Water
;
0 °C
![苯并[1,2-b:4,5-b']二噻吩-2,6-二甲醛结构式图片|85903-00-0结构式图片](http://hg.y866.cn/compound/lib/scimg/cas/150/85903-00-0.png?t=639018868000864478)
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