The alkylation of 1‚4-dimethoxybenzene is very favorable because of the presence of two methoxy groups. The groups act as activators to electrophilic aromatic substitution because of their ability to donate electrons through resonance. This enhanced activation helps favor the initial substitution. After this‚ the ring has two methoxy groups and an alkyl group attached to it. The addition of the alkyl group further activate the ring for another electrophilic aromatic substitution. The addition of
Premium Benzene Hydrogen Oxygen
Melting Point and Boiling Point of Organic Compounds Bongo‚ Sayre‚ J1 1Student‚ Organic Chemistry 1 Laboratory / B11‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapúa Institute of Technology ABSTRACT The melting point of a substance is the temperature at which the material changes from a solid to a liquid state while the boiling point is the temperature at which it changes from liquid to solid. In this experiment‚ the main objectives were to determine the effects of the following
Premium Melting point Carboxylic acid Organic chemistry
Objectives After studying this Unit‚ you will be able to • name haloalkanes and haloarenes according to the IUPAC system of nomenclature from their given structures; • describe the reactions involved in the preparation of haloalkanes and haloarenes and understand various reactions that they undergo; • correlate the structures of haloalkanes and haloarenes with various types of reactions; • use stereochemistry as a tool for understanding the reaction mechanism; • appreciate the applications of organo-metallic
Premium Organic reaction Alcohol Chemistry
EXPERIMENT 8 BOILING POINT n-Butyl Alcohol n-Butyl Alcohol‚ a four carbon straight chain alcohol‚ is a volatile‚ clear liquid with a strong alcoholic odor; miscible with water. It is flammable strongly with a luminous flame. Formula: C4H9OH Boiling point: 118 ºC Melting point: -89 ºC Tert-Butyl Alcohol Tert-Butyl Alcohol or “2-methyl-2-propanol” is the simplest tertiary alcohol. It is one of the four isomers of butanol. Tert-Butanol is a clear liquid (or a colorless solid‚ depending on
Premium Carboxylic acid Carbon Alcohol
33-35 Observations See carbon copy pages: 33-35 Results: Compounds AgNo3 (RT) AgNO3 (50°C) 2-Chlorobutane No reaction No reaction 2-Bromobutane cloudy ------ 1-Chlorobutane No reaction Cloudy‚ precipitate 1-Bromobutane cloudy ------ t-butyl Chloride Cloudy ------ Crotyl Chloride cloudy ------ Benzyl Chloride cloudy ------ Bromobenzene No reaction No reaction Bromocyclohexane cloudy ------ Bromocyclopentane cloudy ------ Compounds NaI (RT) NaI (50°C) 2-Chlorobutane No reaction
Premium Sodium chloride Ethanol Iodine
Chapter 1 MULTIPLE CHOICE QUESTIONS Topic: Atomic Orbitals 1. A) B) C) D) E) In quantum mechanics a node (nodal surface or plane) is: a place where Ψ is negative. a place where Ψ is positive. a place where Ψ = 0. a place where Ψ2 is large. a place where Ψ2 is negative. Ans: C Topic: Atomic Orbitals‚ Molecular Orbitals 2. When the 1s orbitals of two hydrogen atoms combine to form a hydrogen molecule‚ how many molecular orbitals are formed? A) 1 B) 2 C) 3 D) 4 E) 5 Ans:
Premium Molecule Oxygen Covalent bond
concentration of OH- did not affect the rate of the reaction or reaction constant. The hydroxide has a rate order of zero and the t-butyl chloride has an order of‚ so overall rate order of 1. This is because the change in t-butyl chloride concentration did impact the reaction and the increase in concentration increased the reaction rate and the rate constant. In addition‚ in the t-butyl chloride structure the chlorine is attached to a tertiary carbon so the preferred reaction due to carbocation stability is
Premium Chemical reaction Chemistry Reaction rate
Mapua Institute of Technology School of Chemical Engineering and Chemistry Muralla St.‚ Intramuros‚ Manila Melting Point and Boiling Point of Organic Compounds Group No. 5 Manacup‚ Cris Vincent L. Oblena‚ Adrian D. Ong‚ Joshua Jyro B.* *Leader ABSTRACT In compounds‚ two of the physical properties affected by the varying structures are melting point and boiling point. Through the use of the Thomas-Hoover Melting Point Apparatus or the micro method‚ the melting and boiling point of
Premium Hydrogen bond Carboxylic acid Melting point
Experiment 23: Synthesis of an Alkene April 5‚ 2013 Purpose: Results and Discussion The weight of our n-Butyl Bromide sample (actual yield) was 0.09g. The percent yield was found to be 4.38%. Only 0.09g of the theoretical 2.055g yield was obtained. The boiling point was 104° C‚ which is higher than the literature value of 101° C. This is due to the sample being somewhat impure‚ as impurities tend to increase boiling point. When IR spectroscopy was performed‚ there were no OH stretches
Premium Water Yield Distillation
°Thioridazine hydrochloride‚USP. Is a member of the piperizine subgroup of the phenothiazines. Thioridazine occurs as a white or slightly yellow‚ crystalline or micronized powder‚ which is odourless or has a faint odor and is practically insoluble in water and freely soluble in dehydrated alcohol. The drug has sedative and hypotensive activity in common with chlorpromazine and less antiemetic activity. thioridazine is indicated for the treatment of schizophrenic patients who fail to respond
Premium Antipsychotic Schizophrenia