Table 2. Reaction Conditions Screen for Method 2^a.

entry	Ca(OCl)2 [equiv]	time [min]	isolated yield [%]c	2a [%]b	3 [%]b
1	2.0	15	n.d.	86	10
2	0.55	27	n.d.	89	3
3	0.55	37	92	95	5
4	0.55	47	n.d.	86	13
5	0.55	80	n.d.	83	16
6d,e	0.55	42	89	n.d.	n.d.

^aReaction conditions: 1 mmol (1a), H₂O: 18 mL/mmol. n.d. = not determined.

^bDetermined by ¹H NMR spectroscopy.

^cYield of isolated product upon washing with toluene.

^dMultigram scale (10 g).

^eCa(OCl)₂ was diluted and added dropwise over 15 min.