Organic chemistry

synchronously. Therefore, two molecular species involve with the rate determining step, and this leads to the term bimolecular nucleophilic substitution reaction or SN2. The rate of the SN2 reaction can be expressed by rate = K [R-LG] [Nu–]. In inorganic chemistry, this reaction also called “associative substitution” or “interchange mechanism.” The following figure illustrates the mechanism of SN2 reaction. Here, nucleophile attacks the opposite direction of the leaving group. Thus, SN2…

When a teenager tells a group of adults that they want to go into a medical career they usually get a crazy look and people trying to tell them that they should choose an easier career that does not take as much schooling and that will not amount in potential lawsuits. Becoming a doctor of any specialty is extremely hard and requires a vast amount motivation. Doctors usually go through twelve years of regular schooling, four years of college, another four years of medical school, and then…

the objectives (listed in your introduction) and main results of this experiment. [Hint: make sure to discuss what you learned about the size of atoms/molecules based on the measurements made in this laboratory exercise.] What is the Scale of Chemistry? Worksheet Significant Figures, Scientific Notation and the Metric System Name(s) _______________ _______________ Section __________ 1. Convert each of the following numbers to standard notation. In the parentheses, tell how many…

Nasra Hussein Dr. Carolyn Wanamaker CHE 222: Organic Chemistry 2 January 29, 2016 “Conversion of Oxazolidinediones to Isoindoloisoquinolinones via Intramolecular Friedel-Crafts Reaction” Researchers Ji-Young Min and Guncheol Kim from the Department of Chemistry at Chungnam National University developed a method of converting isoindoloisoquinolinones using a Friedel-Crafts reactions. Friedel-Crafts are reactions that involve a 2-step substitution mechanism where substituents are attached to…

the classroom and one in the lab gaining hands on experience. Other programs can consist of two years of classroom work and two years in the laboratory. The basic course work is similar in each, which includes such topics as general chemistry and biology, organic chemistry, biochemistry, anatomy, and statistics. The program can either be strictly university based where real patient samples are not commonly seen, to having a year internship in a hospital where the future technologist will get to…

the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) at B3LYP/6-311G** level of calculations using Gaussian 03 program package [32, 33]. Thus, this principle is pretty beneficial for the utility of electron chemistry, due to the fact HOMO /LUMO potentials involve the capabilities of proton transfer or unshared pair/empty orbital…

4-diphenyl-1,3-butadiene. The ylide-forming reaction occurs in a set of two phases. Dichloromethane was used as the organic layer of the reaction, which was later evaporated. The benzyltriphenylphosphonium chloride helps to transfer the ylide from the aqueous layer to organic layer. After this occurrence, the ylide then reacted with the cinnamaldehyde. A majority of the major product stayed in the organic layer, but some was recovered from the aqueous layer. After trituration and…

containing imine or azoethine (-C=N-) moiety,have been obtained by the condensation of primary amines and carbonyl compounds.It was first time presented by the Hugo schiff (Cimerman et al, 2000). Schiff bases are one of the most important class of organic drugs widely used in variety of different fields such as analytical, biological, and inorganic chemistry.The schiff bases heve been designed to synthesize more and more novel lead molecules possessing least toxicity with highest efficacy.Schiff…

Chlorine is the second to lightest member of the halogen elements. It is in Group 17 (Group VIIA) and period 3 of the periodic table. The element symbol for Chlorine is Cl. Chlorine is a greenish yellow gas that is corrosive, toxic and can be irritating to the eyes and respiratory system. Chlorine is a nonmetal that has the atomic mass of 35.45 amu. It has a melting point of -100.98 degrees Celsius and a boing point of -34.6 degrees Celsius. However, at room temperature it is a gas. Chlorine…

ii. Non-Acidic Oxygen Compounds Figure 3.4 Isomers of non-acidic oxygen compounds (Retrieved from Chemistry of Petrochemical Processes, 2nd Edition, 2001). C .Asphlathenes It is organometallic compounds and inorganic salts (metallic compounds). Mostly sodium, calcium, magnesium, aluminium, iron, vanadium, nickel are present either as inorganic salts, such as sodium and magnesium chlorides, or in the form of organometallic compounds, such as those of nickel and vanadium (as in porphyrins).…