Table 1.
Cross-coupling of aryl sulfamates with morpholine.[a]
![]() | |||
---|---|---|---|
Entry | Ar-OSO2NMe2 | Product | Yield [%][b] |
1 | ![]() |
![]() |
95 |
2 | ![]() |
![]() |
76 |
3 | ![]() |
![]() |
77 |
4 | ![]() |
![]() |
91 |
5[c] | ![]() |
![]() |
80 |
6[d] | ![]() |
![]() |
80 |
7[e] | ![]() |
![]() |
50 |
8[f] | ![]() |
![]() |
64 |
9[f] | ![]() |
![]() |
74 |
10 | ![]() |
![]() |
96 |
11 | ![]() |
![]() |
86 |
12[d] | ![]() |
![]() |
72 |
13 | ![]() |
![]() |
86 |
Conditions unless otherwise stated: [Ni(cod)2] (5 mol%), 5 (10 mol%), sulfamate substrate (1 equiv), morpholine (1.2 equiv), NaOtBu (1.4 equiv), dioxane (0.2 m), 80°C for 3 h.
Yields of isolated product.
[Ni(cod)2] (10 mol%), 5 (20 mol%), NaOtBu (1.5 equiv).
[Ni-(cod)2] (15 mol%), 5 (30 mol%), morpholine (1.8 equiv), NaOtBu (2.2 equiv).
[Ni(cod)2] (20 mol%), 5 (40 mol%), NaOtBu (1.7 equiv), 60°C.
[Ni(cod)2] (15 mol%), 5 (30 mol%), NaOtBu (1.6 equiv).