Provide a structure for the following compound: C10H13NO2; IR: 3285, 1659, 1246 cm?1; 1H NMR spectrum:
The concept is to identify the structure of the compound from given spectrum.
Number of signals in thespectrum is equal to number of non-equivalent hydrogens. If proton attached to more electronegative atom (i.e. O, N, X), then it gives signal at more downfield from the reference compound (i.e. TMS). IR spectrum is useful to identify the functional groups.
Calculate the double bond equivalence is as follows.
So, the compound has 5 double bonds, it indicates the presence of benzene ring.
Total 6 signals are observed in the given spectrum.
Two 2H doublets around 6.9 to 7.5 ppm corresponds a disubstituted benzene ring.
2H quartet at 4.0 ppm and 3H triplet at 1.3 ppm are adjacent to each other.
3H singlet at 2.1 ppm means that the methyl group attached to carbonyl group.
Thus, the structure of unknown compound is,
Thus, the structure of unknown compound is,
The IR value shows that the compound has amide linkage (-CONH2).
The IR value corresponds C-O stretching frequency.
The IR value is N-H stretching frequency.
From spectrum, triplet at 1.1 ppm and quartet is at 4.0 ppm means ethyl group is attached to the oxygen atom. Two doublets at around 6.9 to 7.5 ppm means disubstituted benzene ring. So, from all observation, the name of compound is 1,1-dichloro-2,2-diethoxyethane.
Thus, the structure of unknown compound is,
Thus, the structure of unknown compound is,
Provide a structure for the following compound: C10H13NO2; IR:
3285, 1659, 1246 cm?1; 1H NMR spectrum:
Provide a structure for the following compound:
Provide a structure for the following compound: C6H12O2: IR: 1743 cm-1; 1H NMR spectrum:
Provide a stable structure for the following compound: C9H10O3; IR: 2300-3200, 1710, 1600 cm-1; 1H NMR spectrum:
Provide a structure for the following compound. C_6 H_13 N; IR: 3280, 1653, 898 cm^-1;^1H NMR spectrum.
Provide a structure for the following compound: EI mass spectrum: two molecular ions of about equal intensity at m/z = 180 and 182; IR: 1740 cm–1; 1H NMR: ? 1.30 (3H,t J = 7 Hz); ? 1.80 (3H, d, J = 7 Hz); ? 4.23 (2H, q, J = 7 Hz); ? 4.37 (1H, q, J = 7 Hz).
5) Provide a structure consistent with all of the data for the following compounds. Unless otherwise stated, the IR data is not all inclusive, i.e. you may propose a structure which would include peaks not specifically noted but your structure must account for the peaks which are listed or which are excluded. a) Compound Q (C6H100) decolorizes Br2/CC14. IR peaks at 3500 cm- and 1640 cm"! NO absorption between 1700 and 1800 cm? b) Compound K (C6H100) does not decolorize...
Provide a structure for the compound with molecular formula CoH100 and with the following spectroscopic data. IR: 1680 cm-1 1H NMR: 1.25δ (triplet, IEM), 3.00 (quartet, IZM), 7-8δ (multiplet, l-SH) Edit
A compound with a molecular formula C5H10O
has the following 1H NMR spectrum. Provide a structure
that is consistent with this spectrum.
3. A compound with a molecular formula CsHioO has the following 'H NMR spectrum. pound with a molecular formula CsHioO has the following H NMR Propose a structure for this compound. PPM
a) Provide the structure that is consistent with the data below. C7H14O2 IR (cm-1): 2950, 1750 1H NMR (d): 2.3 (2H, q), 1.0 (3H, t), 0.9 (9H, s) b) Deduce the identity of the compound from the data provided. C10H14O: IR (cm-1): 3200-3500 (broad), 3050, 2950, 1610 1H NMR(δ): 1.0 (s, 6H), 2.0 (s, 3H), 2.8 (broad s, 1H), 7.3 (d, 2H), 7.6 (d, 2H) c) An unknown compound, C3H5Cl3, gave the following proton NMR...
Need help with number 1. Thanks.
An unknown compound has the molecular formula C_5H_10O_2. Its^1H NMR spectrum is shown below (integral values are shown below each peak). Its IR spectrum shows a strong peak at 1740 cm^-1. Determine its structure and assign all peaks on the NMR spectrum.^1H NMR (300 MHz, in CDCl_3) An unknown compound has the molecular formula C_9H_10O. Its^1H NMR is shown below (integral values are shown next to each peak). Its IR spectrum shows a strong...