Table 10.

Synthesis of ω-alkoxy-(ω-3)-hydroxyalkanoic acid lactones 148a–d and 149a–d from 1-hydroperoxy-2-oxabicycloalkanones 147a–d.

Substrate	RCOOH	Time (min)	Lactone	Yield, %
147a	HCOOH	20	148a	64
147a	AcOH	20	149a	65
147b	HCOOH	20	148b	68
147b	AcOH	20	149b	70
147c	HCOOH	30	148c	57
147c	AcOH	30	149c	65
147d	HCOOH	90	148d	68
147d	AcOH	90	149d	53