Table 3 Preparation of cyclic carbamatesa.

From: Cyclic carbamates based on (R)-(+)-limonene oxide for ring-opening polymerization

Entry

b-amino alcohol

Amine

Yield %

1

3a

Methylamine

69

2

3’a

Methylamine

65

3

3b

Hexylamine

80

4

3c

Benzylamine

70

5

3d

Aniline

80

  1. aReaction conditions: β-amino alcohol (1 eq), DMC (1 eq), TBD (0.5 eq), 120 °C, 24 h.
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