Lithiation of 2-bromo-4-(1,3-dioxolan-2-yl)-1,3-thiazole

Abstract

The reaction of lithiation of 2-bromo-4-(1,3-dioxolan-2-yl)-1,3-thiazole with in position 5 of the thiazole ring and double lithiation with t-butyllithium (t-BuLi) in positions 2 and 5 lithium diisopropylamide (LDA) are investigated. When lithiated and dilithiated thiazoles were treated with different electrophiles, a number of trifunctional 1,3-thiazoles were obtained with high yields.

Keywords

• 1
• 3-thiazole
• 2-bromo-4-(1
• 3-dioxolan-2-yl)-1
• Lithiation
• Lithium diisopropylamide