Alkene

There is no doubt that benzene is aromatic. Now we must ask: how can we insert a heteroatom into the ring and retain aromaticity? What kind of atom is needed? If we want to replace one of the carbon atoms of benzene with a heteroatom, we need an atom that can be trigonal to keep the flat hexagonal ring and that has a p orbital to keep the six delocalized electrons. Nitrogen is ideal so we can imagine replacing a CH group in benzene with a nitrogen atom. The orbitals in the ring have not changed…

Synthesis ofp-[1-(p-Hydroxyphenyl)-1-(p-Methoxyphenyl)Ethyl]Phenol (HMEP) 0.2 mol of phenol was mixed with the solution containing 100 mL of acetic acid in 200 mL of concentrated hydrochloric acid in 500 mL five necked round bottom flask fitted with anoil bath, thermometer, mechanical stirrer, reflux condenser. The contents of the flask was stirred for a period of 15 min, the solution was heated to 65oC, 0.1 mol ofp-methoxyacetophenone was introduced into a dropwise to the solution for about 6 h…

1- Introduction Benzosuberone based compounds are important classes of biologically active compounds that attracted a great deal of interest in the medicinal chemistry due to their potent biological activities and wide range of pharmaceutical applications [1-6]. Several publications recorded that some of benzosuberone derivatives possess antipyretic, anti-inflammatory, antimicrobial, antiulcer and antitumor activities [1-6]. As an indication for the importance of the benzosuberone based…

Purpose: The experiment focused on isolating terpenes from citrus peels using supercritical carbon dioxide liquid phase. The experiment also focused to identify/ quantify organic compounds using IR and gas chromatography. Experimental: The experiment procedure can be found in the Organic Chemistry Manual in chapter 6.2 pages 6.11-6.21 and also in Appendix D: experimental records Results and Discussion: Part A: All the lemon peel date was obtained from my lab partner Irini Petros as cited in…

product, a ratio of (E)-stilbene to (Z)-stilbene was 1:1. This means that the crude mixture was half of the trans isomer and half the cis isomer. This ratio was determined by looking at the two singlets in the spectra RM-09-1 representing the protons on alkene double bond. The singlets in RM-09-1 were found at 7.11 ppm and 6.59 ppm. The reported values, found on SDBS, for the chemical shifts of these singlets were 6.57 ppm for (Z)-stilbene and 7.15 ppm for (E)-stilbene. These peaks also…

food-industry workers died. His team worked very hard and researched with a potential alternative refrigerant. Tetrafluoroethylene is a chemical compound with the formula C2F4. It belongs to the family of fluorocarbons and is the simplest per fluorinated alkene. This gaseous species is used primarily in the industrial preparation of polymers. Tetrafluoroethylene is a colorless, odorless gas.…

INTRODUCTION The purpose of this experiment was to demonstrate the stereochemistry of the electrophilic addition using (E)-Stilbene, a trans-isomer of ethylene. Bromine was added and reacted with (E)-Stilbene to form an alkene. A product was made with both a meso-stilbene dibromide and a d/l-stilbene dibromide, which is trans-stilbene dibromide. DISCUSSION AND CONCLUSION For the reaction to form these two different compounds with the same starting reactants, the double bond of (E)-Stilbene…

exothermic reaction. The results between the cyclohexene and the sulfuric acid were possible due to the attraction forces between a positive hydrogen ion (in solution) and a negative oxygen ion in the sulfuric acid- a carbon from the double bond (alkene) attaches to the oxygen atom (sulfuric acid). This type of interaction is called an electrophilic addition reaction (Clark, 2017). Therefore, cyclohexyl hydrogen sulfate otherwise known as cyclohexane hydrogen sulfate is…

phosphoric acid will act as a catalyze. Drierite will be added to the reaction flask to adsorb both the water that forms and the water which is present in the phosphoric acid. The reaction is carried out in the bottom of the Hickman still. As the volatile alkene product forms it vaporizes and collects in the ring. When the reaction is carried out correctly, the product that condensed and is collected into ring of the Hickman still should be dry, free if starting alcohol and ready for analysis…

acid, as well as use a water bath to speed up the evaporation time. Another improvement may be to use alumina as a filtering agent to get rid of the additional byproducts. Friedel-Crafts acylation occurs as a quality control assay for steroids. The alkene groups in a 25:1 mixture of 98% acetyl chloride and 70% perchloric acid is used to distinguish between steroid analogs. A 25:1 AC/PA mixture along with AC with zinc acetate reagent were used to investigate the steroids. A color change occurs…