Question

acid ork? at least 102 carboxylic 2.) The IR of this compound shows a st unknown. Give the structures of key fragmen form. a strong peak at 1714 cm 1. Give two plausible structures for this Key fragmentation ions and provide the mechanism by which they a tot a carboxylic acid Prisent hipead Bp 57 Mersity No pak@ 70 tt 110 80 90 100 Orthithtitill H 10 20 30 40 50 60 70 m/7 m/= 114 .

Answer 1

1st stuncture Cria- CH2 - CH2 - CH3 H₂ C-H₂or 2nd stuictuvie - H₂c - cry - CH₂ - C- CH₂ - CH2 M = 114 1714 am conresponds to pop canbongle group iy m), - 29. M3 C-HR - Car H. z o {tze- cunt H3 C – caz z w & Map - cz [tiza - congt [cu, ens cha77 [cly Cha Cuzit My C. - C - - 0.0 - CM2 - CHg — Hoge - china cria z - chi eng - CM3 my m)2 = 57 , i q clonage H₂ C a Hj arcu CH₂ - CH2. m CH2 - CH₂ - juy m/z = 70. Mc Lafferty rearrangement CH2 CH2 CH2 CH3 ut. H₂C - CH2 - C 7 CH2 - CH - Chan CH3- - CH₂ -c = CH₂ 1 + H₂ c = co-ch.

m/= 85 on the , - - Curs - [8 - ase - ova) " 4, e-C,... -&- eno seu cos – Pilke-cu, co onaj ta=99 0 Hoc şeno - o - on, - , - , - curs — [ons -&- 0 - - - v, ev7 | Học sipes, - - - - - - H, TH, Len, H, 4, 5*