Question

Assign the NMR for Cryptostyline I.

300Hz in CDCl3.

-7.260 r6.789 6.756 6.732 6.709 *6.589 ——6.162 —5.335 厂4.099 F3849 3.734 | 3.711 -3.618 | 3.201 3.194 -3.149 3.133 -3.102 3.082 3.072 3.063 3.054 -3.045 2.737 -2.725 - 2.680 11-2.637 2.614 - 2.591 -2.578 7 *2.560 4 -2.541 -2.244 (-1.568 -1.267 |- 1.244 L1.220 < 0.000 ppm

Answer 1

Solution - Cryptostyline Cho z 12-type Hydrogen Present 'H-wrk- analysin quo iz Ža S.No. | Chemical shift | Noog leysageng Multiplicidy Gepling, Goutand Pasignment Singlet Singlet 3.6 3.8 7.4 Singled 6.8 Singlet 7H2 2.5 triplet 2.7 dripled 7 Hz Singlet Singlet doublet doubled y doubled 2H₂ SH2, 2H2 67 8H2 doublet singlet