A Summary On The And Of The Roots

3. The IR spectrum of the starting material shows a medium/strong C-O bond at around 1500cm-1, also the starting material shows a strong C-H bond at around 3000cm-1 and another medium C-H bond at 2865cm-1 indicating an aldehyde group whereas the product does not. The IR spectrum of the product shows a two weak broad O-H peaks at around

An example of those are carnosic acid, rosmarinic acid and caffeic acid, possessing strong antioxidant, radical-scavenging, and antibacterial activities. The majority of the phenolic acids in Sage species are derivatives of caffeic acid which is the building block of a variety of plant metabolites. Caffeic acid plays a central role in the biochemistry of the Lamiaceae plants, and occurs mainly in a dimer form as rosmarinic acid. Carnosic acid and rosmarinic acid, which are present at high concentrations in the extract of Sage plants, have shown strong antioxidant properties. Ursolic acid, also a component of sage, has strong anti-inflammatory properties, and in sage preparations, it is considered as a quality control measurement for the anti-inflammatory effects of different

Once this structure was predicted, it will represent the R group of the ester. The oxygen side chain can be predicted as a butane by understanding the mechanism behind esterification. Using the molecular formula of the unknown carboxylic acid, the degree of unsaturation was calculated to be five. This number indicates that there is potentially an aromatic ring, alkene, or alkyne. However, looking at the chemical shifts in the NMR, the lack of peaks within 7 ppm + can ruled out the presence of an aromatic ring.

The purpose of this lab was to isolate the cove oil from ground cloves and determine the identity of the major constituent that is known to have the molecular formula C10H12O2 through IR spectrometry.

Experiment 3 - Chromatography – Analyzing Analgesics by TLC and Isolation of β–Carotene by Column Chromatography

Identifying the three components of the unknown mixture, a 1.5 g sample was obtained and dissolved in 30 mL of diethyl ether. This solution was then poured into a separatory funnel with a funnel with the stopcock closed, and inverted twice so that there would be a formation of different layers in the mixture. In order to extract the base from the mixture, approximately 14 mL of 10% hydrochloric acid was added into the funnel and mixed. To mix the hydrochloric acid thoroughly the funnel was gently shaken with the pressure released by removing the stopper intermittently. The solution then separated into an aqueous layer at the bottom, and an organic layer at the top (containing the acid).1 The aqueous layer (containing the base) was released into an

If the IR spectra showed that it was an alcohol, Jones Test and Lucas Test can be used. If the IR spectra showed that it was either an aldehyde or ketone, we can use the DNP Test, Jones Test, and Tollens test, to determine which functional group is in the unknown. The IR Spectra can distinctively show the unknown as an alcohol, but cannot distinctively distinguish between aldehyde and ketone, because aldehyde and ketones have similar characteristic absorbances. Therefore, to distinguish between aldehyde and ketone, further chemical tests are needed. In the IR Spectra of unknown #305, it indicated that it was most likely an alcohol, due to the O-H peak at

Dictionary of organic compounds, 6th edition, Chapman and Hall, London, Volume 3(& Volume 6), 1996 Maria Lindsay and Sean P. Hickey, Organic chemistry lab 2 manual, department of Chemistry University of New Orleans

Based on the boiling point of the ester,119.0 C, the data suggests Isobutyl Acetate was the product and would suggest Isobutyl Alcohol as the unknown alcohol reagent.

Abstract: The identification and characterization of unknowns are an important part of organic chemistry. It is fundamental to know experimental methods to deductively identify compounds (1) . The determination of unknown #6 (2-butanol) was identified by a series of test; first taking the boiling point (94-96 C), performing a solubility test, Beilstien test, Ignition test, and the appropriate functional group tests. An infrared spectrum and an NMR spectrum were then obtained and confirmation of the compound was proved.

Both the 1H NMR and GC/MS spectra support the conclusion that the products are propyl xylene and iso-propyl xylene in a 7:3 ratio. Being that iso-propyl xylene and propyl xylene share a similar structure, many of their peaks are overlapping. Peaks B, D, and C are all hydrogens attached directly to the aromatic, and are found at approximately 7.1ppm. These peaks slightly differ in their multiplicity, with B being and singlet, and D and C appearing as doublets. The structures also share peaks for the hydrogens attached to the methyl substituents, which are shown at 2.40ppm as a large singlet. The peaks begin to somewhat deviate when looking at the propyl group. It was primarily peak G, that allowed for the differentiation between the propyl and iso-propyl

The purpose of the experiment is isolate the natural products -terpenes and acetogenins- and to observe their properties. The terpene used was used to isolate was limonene from a citrus peel, and the acetogenin that was used to isolate was eugenol from clove oil. The techniques used to isolate these two natural products was a steam distillation and extraction. The amount of eugenol that was recovered 2.39 grams. After the recovery of eugenol, an IR spectrum was obtained. The IR spectrum displayed the presence of an alcohol at 3529.37 cm-1 and an alkene at 1638.08 cm-1. Classification tests are used to determine what is present.The results for the classification tests for eugenol are shown below in the table.

For the identification of the product, IR, 13C NMR and 1H NMR spectra were examined, and the product was found to be butyl propionate. In the IR spectrum, RM-11-Bi, five key peaks are observed. These peaks are sp3 hybridized carbons at 2961 cm-1 and 2877 cm-1, an ester at 1737 cm-1, a

In the monohydric alcohol group there is Methanol (wood alcohol), ethanol (alcohol), isopropyl alcohol (rubbing alcohol), Butyl alcohol (butanol), pentanol (amyl alcohol), and hexadecan-1-ol (cetyl alcohol). Another group of alcohols would be the polyhydric alcohols. With these alcohols there are ethane 1,2-diol (ethylene glycol), propane 1,2-diol (propylene glycol), Propane-1,2,3-triol (glycerol), Butane-1,2,3,4-tetraol (Erythritol, Threitol), Pentane-1,2,3,4,5-pentol (xylitol), Hexane-1,2,3,4,5,6-hexol (Mannitol, Sorbitol), Heptane-1,2,3,4,5,6,7-heptol (volemitol). Another group of alcohols would be the unsaturated aliphatic alcohols. In this group would be Prop-2-ene-1-ol (allyl alcohol), 3, 7-Dimethylocta-2, 6-dien-1-ol (geraniol), and Prop-2-in-1-ol (Propargyl alcohol). The last group of the alcohols would be alicyclic alcohols. In this group there is Cyclohexane-1, 2, 3, 4, 5, 6-hexol (inositol) and 2 - (2-propyl)-5-methyl-cyclohexane-1-ol (menthol) (Britannica). The names above are just a list of some of the alcohols that can be found within the big range and different types of alcohols. The alcohols above use the same formats as alkanes to be named.

These all come from a shrub indigenous in China and Canada, called the camellia silences plant. According to WebMD they hold special antioxidants called flavonoids.