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Table 2 1 H in Gossypolhemiquinone, a dimeric sesquiterpenoid identified in cotton (Gossypium)

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Table 2 1 H chemical shifts for gossypolhemiquinone (GHQ) (9) compared to the dimeric sesquiterpenoids gossypol (Goss) (1) and gossypolone (GQ) (2) (for carbon assignments refer to Fig. 1). C#TypeGoss (1)GHQ (9)C#TypeGQ (2)GHQ (9)δδδδ1C1-OH5.896.60 a21C21-OH6.596.39 a4Ar-H7.777.6522C22-OH13.0112.976C6-OH6.396.37 a26HC=O10.5810.507C7-OH15.1015.0527Ar-CH32.041.9711CHMe23.883.8228CHMe24.124.0512CH31.531.4829CH31.421.3913CH31.531.5330CH31.441.4214HC=O11.110.9015Ar-CH32.132.19 a Assignments for GHQ (9) C1-OH, C6-OH and C21-OH may be interchanged.
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2025-04-05
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