Article ID Journal Published Year Pages File Type
5279840 Tetrahedron Letters 2005 4 Pages PDF
Abstract

Metalation-alkylation of 2-bromothiophene 1 when conducted at low temperature led to the 5-alkylated 2-bromo products 2. While, at room temperature, the same sequential reactions afforded the original dibromo-alkylated thiophenes 3 following an unprecedented halogen transfer-based halogen dance process in highly regiocontrolled and ordered way.

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Physical Sciences and Engineering Chemistry Organic Chemistry
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