3‐(1‐imidazoyl)‐6‐methoxy‐2‐benzoxazolinone. A byproduct of the synthesis of 6‐MBOA With 1,1′‐carbonyldiimidazole

Previously unknown 3‐(1‐imidazolyl)‐6‐methoxy‐2‐benzoxazolinone was isolated as a byproduct of the synthesis of reproductive‐stimulant 6‐methoxybenzoxazolinone (6‐MBOA) with 1,1′‐carbonyldiimidazole. Concomitant with byproduct formation was a 34% reduction in the yield of the desired 6‐MBOA. A brief discussion of the formation of this byproduct and maximization of the yield of 6‐MBOA is included.