A novel process for preparing 3,4-di(carbocyclyl or heterocyclyl)thiophenes comprising reacting a compound of Formula IV: 
with a ring cyclizing reagent to form the compound of Formula V to yield a compound of Formula V: 
wherein R1, R2 and R3 are as defined in the specification.
                            一种制备3,4-二(环烷基或杂环基)
噻吩的新工艺,包括将公式IV的化合物与环化试剂反应,形成公式V的化合物,以得到公式V的化合物:其中R1、R2和R3如规范中所定义。