Highly efficient and chemoselective interchange of 1, 3-oxathioacetals and dithioacetals to acetals promoted by N-halosuccinimide

~91%

~94%

~76%

~91%

~87%

~96%

~89%

~90%

~91%

~97%

~95%

~90%

~93%

~88%

~90%

~94%

~90%

~94%

~97%

~89%

~90%

~93%

~96%

~98%

~93%

~92%

~95%

~92%

~85%

~89%

~86%