Table II. NMR data for synthesized benzodioxane trimer acetates 12

*, The chemical shifts for B5 and C5 are close to each other and may be interchangeable.

G-5H-5H, 12gS-5H-5H, 12s
1H13C1H13C
Gα5.06, 1H, d, J = 7.7 Hz77.00, 77.03Sα5.05, 1H, d, J = 7.8 Hz77.38, 77.44
Gβ4.42, 1H, m76.03, 76.06Sβ4.46, 1H, m76.06, 76.12
Gγ4.03, 1H, m, 4.30, 1H, m63.31, 63.31Sγ4.06, 1H, m, 4.30, 1H, m63.37, 63.37
G1135.83, 135.83S1135.37, 135.37
G27.25, 1H, d, J = 1.7 Hz112.72, 112.78S26.90, 2H, s105.30, 105.34
G3152.53, 152.55S3153.50, 153.50
G4141.43, 141.44S4130.12, 130.12
G57.12, 1H, d, J = 8.2 Hz123.89, 123.91S5153.50, 153.50
G67.70, 1H, dd, J = 8.2, 1.7 Hz120.72, 120.75S66.90, 2H, s105.30, 105.34
Bα4.94, d, J = 7.6 Hz76.83, 76.93Bα4.96, d, J = 7.6 Hz76.87, 76.96
Bβ4.35, 1H, m76.20, 76.22Bβ4.39, 1H, m76.23, 76.23
Bγ4.03, 1H, m, 4.30, 1H, m63.54, 63.54Bγ4.06, 1H, m, 4.30, 1H, m63.59, 63.59
B1129.56, 129.59B1129.64, 129.67
B26.77, 1H, d, J = 1.80 Hz105.24, 105.39B26.79, 1H, brd105.30, 105.50
B3150.19, 150.23B3150.24, 150.30
B4134.32, 134.33B4134.41, 134.41
B5145.14, 145.19B5*145.20, 145.26
B66.73, 1H, d, J = 1.8 Hz109.78, 109.89B66.74, 1H, d, J = 2.0 Hz109.33, 109.36
Cα6.56, 1H, brd, J = 15.9 Hz134.23, 134.23Cα6.57, 1H, brd, J = 15.9 Hz134.27, 134.27
Cβ6.23, 1H, dt, J = 15.9, 6.3 Hz123.12, 123.12Cβ6.24, 1H, dt, J = 15.9, 6.3 Hz123.17, 123.17
Cγ4.65, 2H, d, J = 6.3 Hz65.32, 65.32Cγ4.66, 2H, d, J = 6.3 Hz65.33, 65.33
C1130.05, 130.06C1130.13, 130.20
C26.76, 1H, d, J = 1.8 Hz103.94, 103.94C26.77, 1H, d, J = 1.9 Hz104.00, 104.00
C3150.12, 150.12C3150.20, 150.20
C4133.94, 133.96C4134.00, 134.03
C5145.13, 145.13C5*145.17, 145.18
C66.65, 1H, d, J = 1.8 Hz109.06, 109.06C66.66, 1H, d, J = 1.9 Hz109.10, 109.10