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Table 1 Yield % of the synthesized bis( ω -bromoacetophenones) 3a-c and 4a-c

From: Microwave assisted synthesis of bis and tris(ω-bromoacetophenones): versatile precursors for novel bis(imidazo[1,2-a]pyridines), bis(imidazo[1,2-a]pyrimidines) and their tris-analogs

Entry X 3a-c( o-isomer) Yield%a,[39] Yield%a
    MW
1 2 3a 68 74
2 3 3b 83 86
3 4 3c 92 95
   4a-c( p- isomer)   
4 2 4a 57 60
5 3 4b 85 89
6 4 4c 95 95
  1. aYields of isolated compounds.