peak positions are singlet‚ doublet of triplets‚ doublet of triplets‚ singlet‚ and singlet‚ respectively. The two doublet of triplet peak sections at 6.7 ppm and 7.4 ppm represent the aromatic Hydrogens‚ which covers four of the nine Hydrogens proposed by the hypothesized formula. The integrated values for the aromatic peaks includes 1‚ 2‚1.9‚ and 1.4‚ which indicates that the integrated values will be off for some of the peaks. The peak at 2.0 ppm represents standard methyl Hydrogens‚ and the singlet
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carbonyl functional groups share these two properties‚ within the carbonyl family of compounds‚ there are significant differences in reactivity. Aldehydes are generally more reactive than ketones and more easily oxidized. Carbonyls directly bonded to aromatic groups are generally less relative than Carbonyls that are directly bonded to alkyl substituents. In this experiment‚ we will perform each reaction on the known compounds that correspond to each chemical test first‚ to determine whether the
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to the aldol condensation which is followed by elimination. In this reaction E and Z isomers of phenylcinnamic acid are created using benzaldehyde and acetic anhydride. The intermediate product is acetic phenyl acetic anhydride. Benzaldehyde is an aromatic compound that Results: The reaction involves the use of benzaldehyde with acetic anhydride which gave the phenylacetic acid which would be used with in the farther steps of the reaction to produce the E and Z phenylcinnamic acid. The mechanism
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obtained solid was filtered off and recrystallized from ethanol. m.p. 270oC ‚ 75% yield. Analysis calculated for C14H8Br2ClN3; Calcd.: %C‚ C‚ 40.67; H‚ 1.95; N‚ 10.16‚ Found: % C 40.70; H‚ 1.99; N‚10.10. IR: υmax./cm-1 3250‚ 3140 (NH2)‚ 3010 (C-H aromatic)‚ 1620 (C=N) and at 1600 (C=C). 1H-NMR (DMSO-d6‚ ppm): δ 7.5-8.5 (m‚ 6H‚ Ar-H ) and at 12.9( 2H‚ s‚ NH2‚ exchangeable with D2O). 13C NMR (DMSO-d6):163‚ 161‚ 149‚ 140‚ 133‚ 135‚ 129.4‚ 129‚ 125‚ 122‚ 120‚ 114. MS: m/z = 417 6‚8-dibromo-2-(4-chlorophenyl)-4-hydrazinylquinazoline
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expected triphenylmethanol. The identity of the product being correct was further confirmed by way of both proton and carbon-13 NMR spectra. This is due to the fact that both spectra yielded peaks that contained the main structural residues‚ alcohol and aromatic groups‚ of triphenylmethanol. The final yield of pure triphenylmethanol was 8.04 grams‚ resulting in a percentage recovery of 67.7%. Introduction When faced with the task of needing to form a new carbon-carbon bond in organic chemistry‚ chemists
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the structure had to add up to 148. ATR-IR suggested the presence of an aromatic ring‚ alkene group and carbonyl group. CNMR showed the presence of an aromatic ring‚ carbonyl group and a methyl group. HNMR showed the presence of an aromatic ring‚ alkene group and carbonyl. Using the rule of 13 and the adjustment for oxygen‚ the predicted structure of the anise oil was C10H12O with 5 degrees of unsaturation. Since the aromatic ring is 4 degrees of unsaturation by itself‚ the last degree of unsaturation
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strategies to be considered by marketing department when seeking to enter foreign markets. Chosen Product to be marketed The chosen product to be marketed internationally is Angostura Aromatic Bitters; this product is indigenous to Trinidad and Tobago. This product was created by Dr Siegert‚ initially called “Dr Siegert Aromatic Bitters” and later renamed Angostura Bitters (C‚ 2011)It has maintained its unique and original secret recipe since its inception in1824. Angostura Bitters is exported to 150 countries
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Explain the use of crude oil as a source of both aliphatic and aromatic hydrocarbons Crude oil: a complex mixture of hydrocarbons found in layers of rock beneath the earth’s surface Aliphatic Hydrocarbons: contain chains of carbon atoms that may be branched Aromatic Hydrocarbons: contain Benzene rings- rings of carbon atoms with delocalized electrons Alkanes all have different boiling points dependent on the length of the carbon chain in the molecule. The smaller chains ie. the most volatile
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pollution is a critical environmental issue that can have fatal health impacts on people of all ages‚ especially children‚ in both developed and developing countries. Exposure to air pollutants like ground-level ozone‚ particulate matter‚ and polycyclic aromatic hydrocarbons (PAHs) can have damaging effects on fetal and early childhood development such
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as 14C in DNA which decays into nitrogen. [edit]DNA reactive chemicals A DNA adduct (at center) of benzo[a]pyrene‚ the major mutagen in tobacco smoke. A large number of chemicals may interact directly with DNA. However‚ many such as PAHs‚ aromatic amines‚ benzene are not necessarily mutagenic by themselves‚ but through metabolic processes in cells they produce mutagenic compounds. Reactive oxygen species (ROS) - These may be superoxide‚ hydroxyl radicals and hydrogen peroxide‚ and large number
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