Solution-state nuclear magnetic resonance (NMR) spectroscopy is the classical NMR spectroscopy approach used for molecular structure determination, where the experimental sample is studied while ...

All India Institute of Medical Sciences (AIIMS), Rishikesh, Uttarakhand 249201, India ...

Specifically, the proton chemical signals of 3a-PPh 3 were upfield at 12.12, 6.45, 6.35, and 4.97 ppm, whereas those of 2a were downfield at 14.49, 8.17, 8.96, and 6.83 ppm (Fig. 2D and SI Appendix, ...

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