Alkene

cycloaddition between chiral nitrone 128 and allyl cyanide under microwave activation at 110°C in toluene to provide cycloadduct 2 in 96% yield as a single isomer (Scheme 1).The regioselectivity was identical to that observed for diverse terminal alkenes, with attack on the terminal methylene by the electrophilic carbon of the nitrone, presumably due to both steric and electronic reasons.29a-f The stereoselectivity results from the approach of allyl cyanide on the less hindered face of nitrone…

Introduction: As it is taught throughout school, all living things are made up of cells. These cells are carry out all the necessary functions to keep the human body well maintained including chemical reactions and other complex tasks. In order to carry out these functions, it’s vital for the cell to possess a membrane. Cells create cholesterol, which is a cyclic fatty-product that maintains the cells permeability. Cholesterol is also synthesized to create steroid hormones, and also vitamin D.…

After deprotonation of 6.8 mmol naphthalen-2-ol by 14.0 mmol NaOH, the resulting anion was placed together with 8.8 mmol 1-iodobutane, and the reaction was performed by reflux in 20 mL of ethanol (EtOH) solvent, and the product was allowed to cool on ice and collected by suction filtration. The final crystals had a very pale amber color and were odorless. The following week, after being allowed to completely dry for a week at room temperature, the IR spectrum of the product in liquid suspension…

these are thermodynamically unstable and are pyrophoric. The meta may belongs to main group, transition metal, f group metal or a metalloid i.e. selenium, boron, arsenic, silicon, antimony, germanium, and tellurium and the carbon moiety may be alkyl, alkene, alkyne, carbonyl, cyclic, heterocyclic or aromatic.1 Historical Background: In 1827, the discovery of Zeise’s salt, K[Pt(C2H4)Cl3], and in 1849 the preparation of metal alkyls by Edward Frankland give origin about the preparation of…

substitution mechanism where substituents are attached to aromatic rings. Two types of this reaction include alkylation and acylation. Alkylation involves the synthesis of alkylated products from reactions between aromatic rings and alkyl halides or alkenes. During this reaction the presence of a strong Lewis…

Weed is one of the illicit substances that is being consumed by many people for various reasons. A few people use the cannabis for amusement, whereas others use it for restorative purposes. Consequently, the Canadian Federal Government is intending to sanction cannabis use this mid-year. There has been countless upholding for the legitimization of the marijuana. However, there are others that are contradicting the endeavors to sanction the weed. To begin, marijuana contains more than 400…

benzene are often referred to as being aromatic. Benzene has characteristics that differ from many compounds causing it to react differently when mixed with certain compounds. Although benzene has three double bonds, it does not react like a normal alkene in terms of addition reactions. For example, when bromine reacts with a simple carbon-carbon double bond it forms dibromo. Benzene does not do this unless it is in the presence of a strong catalyst, making it no longer an addition reaction, but…

public demand for petroleum makes it hard for new investors to choose biofuel over the well-known profit industry of petroleum-fuels which not only consist of gasoline and natural gas, but also from its derived coproducts such as lubricants, wax, alkenes, sulfuric acid paraffin wax and many more. (3) The process of creating biofuels is by the process of converting starch from corn, cereal, sugar cane and many other sugar rich biomasses into sugar, fermentation and finally distillation (4). This…

the system with H2 while the cap is off (The Rh complex (dark red) is not very soluble in toluene, but the dihydride complex (pale yellow) dissolves completely). Then add 1 mL of freshly distilled cyclohexene dropwise with a syringe. As soon as the alkene is added, the solution will turn deep red-brown in color. Reattch the septum and flush the flask with H2 gas, the color of the solution will lighten to pale yellow (If the H2 gas flow is stopped and stirring is discontinued even for 30…

This experiment’s aim was to find the alcohol with the highest energy output when burnt using specific heat capacity of calorimeters. This data gathered only partially supported the hypotheses stated. There is an apparent trend between the heat energy of the alcohols and the amount of carbon atoms in the alcohols in the graphs shown. The first experiment (first graph) shows the results of the tests with a controlled calorimeter height of 20 centimeters. This means that the calorimeter, rather…