2D NMR STUDIES ON METHYL GIBBERELLATE AND ITS ANALOGUES

Chinese Journal of Magnetic Resonance ›› 1993, Vol. 10 ›› Issue (1): 61-67.

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2D NMR STUDIES ON METHYL GIBBERELLATE AND ITS ANALOGUES

Cui Yuxin, Li Yu, Xie Wenge, Pan Xinfu

The State Key Laboratory of Applied Organic Chemistry Lanzhou University, The Institute of Organic Chemistry Lanzhou University, Lanzhou 730000

Received:1992-05-16 Revised:1992-10-13 Published:1993-03-05 Online:2018-01-20

Abstract

Abstract: Gibberellins form an important group of plant growth hormone, which have many biological activities. Its structure was determined by X-ray single crystal diffraction, no complete assignment of ¹H and ¹³C NMR spectrum of the compounds have been reported. In this paper, all the ¹H and ¹³C NMR chemical shifts of methyl gibberellate (2), 13-acetoxygibberellin A₁ methyl ester (3) and its 3-epimer (4) were assigned by ¹H-¹H COSY, ¹³C-¹H COSY, NOESY and DEPT, and their relative configurations were discussed.

Key words: Two-dimensional NMR, Chemical shift, Methyl gibbercllate, Epimer, Configuration

Cui Yuxin, Li Yu, Xie Wenge, Pan Xinfu. 2D NMR STUDIES ON METHYL GIBBERELLATE AND ITS ANALOGUES[J]. Chinese Journal of Magnetic Resonance, 1993, 10(1): 61-67.

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2D NMR STUDIES ON METHYL GIBBERELLATE AND ITS ANALOGUES

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