aldehydes there is at least one hydrogen bonded to the carbonyl carbon; the other attachment may be to a carbon or a hydrogen. In all cases the carbon(s) that are attached to the carbonyl group may be aliphatic (not part of an aromatic ring) or aromatic (part of an aromatic ring). Since they share the carbonyl group‚ aldehydes and ketones share much of their chemistry‚ but they are different enough to be considered different classes of compounds. This situation is similar to that of alcohols and phenols
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Alkyl Halides. Nucleophilic Substitution Structure & Preparation of Alkenes: Elimination Reactions Reactions of Alkenes: Addition reactions Alkynes Conjugation in Alkadienes & Allylic Systems Arenes and Aromaticity Reactions of Arenes: Electrophilic & Nucleophilic Aromatic Substitutions B. R. Kaafarani 2 Course Grading Exam I Exam II Assignments Final Exam I: 25% 25% 10% 40% 100% Wednesday‚ March 13‚ 2013; 6:30 PM in Bliss 203‚ 208‚ 209‚ and 210A. Exam II: Wednesday‚ April 10‚ 2013; 6:30
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L-6 MCQ (A) MCQs of the Textual Exercise 1) In haloalkane _________ bond is formed between carbon and halogen. (a) Ionic (b) van der Waals (c) Covalent (d) hydrogen 2) In haloarene compounds‚ halogen combines with carbon having which hybridization? (a) sp2 (b) sp3 (c) sp (d)dsp2 3) In haloalkane‚ carbon in C-X bond possesses which partial electric charge? (a) Charge less (b) positive (c) negative (d) anionic 4) Which of the following bonds is the strongest?
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alpha hydrogen is acidic because of its location near the carbonyl on acetophenone. When the sodium hydroxide is added‚ it deprotonates the hydrogen and creates an enolate ion. This deprotonation creates a nucleophilic carbon that can attack an electrophilic carbon (like a parent carbon of a carbonyl). This enolate ion is a resonance structure and the oxygen atom and the corresponding pi bond it can form can stabilize the negative charge. When the nucleophilic pi bond attacks the carbonyl carbon (the
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Abstract In the asymmetric synthesis of (S)-Ibuprofen‚ the compound is synthesized in nonracemic form directly from an achiral precursor. First‚ racemic ibuprofen was converted to aN achiral ketene via the acid chloride by adding thionyl chloride followed by triethylamine. Then‚ ketene was reacted with a chiral and nonracemic (S)-ethyl lactate produces a mixture of diasteromeric esters of ibuprofen derivatives where (S) configuration is predominantly. Finally‚ hydrolysis of the ester then provides
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stretching bands of CH2 are observed in the range from 2900 to 2700 cm-1 and this stretching band is mainly coupled with the CH3 stretching vibration. Mirtazapine has only one CH3 group. The C-H stretching vibrations of methyl are observed between 3000 and 2900 cm-1. A methyl group attached to a nitrogen atom gives rise to a band in the region 2800-2780 cm-1.These vibrations are observed at 2966 and 2856 cm-1. The C-C stretching modes of phenyl group are expected in the range of 1650-1200 cm-1
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tendency to undergo evaporation on being exposed to the air even at an ambient temperature‚ they are invariably termed as volatile oils‚ essential oils or ethereal oils. They mostly contribute to the odoriferous constituents or “essences” of the aromatic plants that are used abundantly in enhancing the aroma by seasoning of eatables. Oil is "essential" in the sense that it carries a distinctive scent‚ or essence‚ of the plant. Essential oils do not form a distinctive category for any medical‚ pharmacological
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University of Santo Tomas Faculty of Pharmacy Organic Chemistry Laboratory APPLICATION OF DIFFERENT KINDS OF TEST TO CLASSIFY HYROXY- AND CARBONYL-CONTAINING COMPOUNDS Jane Catherine SP. Villanueva‚ Edenn Claudine C. Villaraza‚ Lorenz Oliver C. Villegas and Cristel Bernice T. Wee Group 10 2G-Medical Technology Organic Chemistry Laboratory ABSTRACT Hydroxyl group refers to a functional group containing OH- when it is a substituent in an organic compound. It is also known as the characteristic
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SUMMARY OF ORGANIC REACTIONS SECTION 1 - ALIPHATIC Aldehydes and ketones |Type of reaction |Mechanism | |1. oxidation (aldehydes only): aldehyde ( carboxylic acid |n/a | | | | |reagents: potassium
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Dissolve the solid in exactly 4 mL tert-butyl methyl ether of. Add exactly 2 mL of water‚ cap the tube and shake. Let the mixture stand until two layers are formed. Remove the aqueous layer. Wash the organic layer two more times with exactly 2 mL of water (each time). After the final wash‚ dry the
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