. Author manuscript; available in PMC: 2018 Nov 3.

Published in final edited form as: Org Lett. 2017 Nov 3;19(21):6012–6015. doi: 10.1021/acs.orglett.7b03059

Table 3. N- and O-substitutent variations^a.

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General reaction conditions: 1.0 equiv alcohol 3 or amine 5, 1.5 equiv sulfamate 2, CH₂Cl₂, 3.0 equiv Et₃N, Tf₂O (1.5 equiv), Ph₃PO (1.65 equiv), 18 h, −78→ 22°C.

1.0 equiv sodium pentoxide, 0 → 22°C.Alcohol and Et₃N were omitted.

Table 3. N- and O-substitutent variationsa.

Table 3. N- and O-substitutent variations^a.