Synthesis

Abstract: The purpose of this lab was to synthesize triphenylmethanol from benzophenone and bromobenzene by the formation of a Grignard compound with the reagents bromobenzene and magnesium metal. The bromobenzene was first transformed into the Grignard compound and was then reacted with the benzophenone to make the final product. The mixture was then mixed with sulfuric acid and the organic layer was extracted via a separatory funnel. The mixture was then recrystallized from methanol and was allowed

4-d]thiazoles and antimicrobial activity. INTRODUCTION Benzothiazoles are heterocyclic compounds with multiple application and although they have been known from long ago to be biologically active.1-3 Recently, Racane et al4 have described the synthesis of bis-subsituted amidinobenzothiazoles as potential anti-HIV agents. The condensation of dithio-oxamide with aromatic aldehyde was described by Ephraim.5 More recently, Johnson and Ketcham6 studied the reaction and established the structure of

Multistep Synthesis of Tetraphenylcyclopentadienone In this laboratory experiment a synthesis was performed through several separate steps. The purpose of the experiment was to synthesize tetraphenylcyclopentadienone from benzaldehyde and to run reactions on carbonyl containing compounds. There was a total of three steps that led up to the synthesis of the final product, tetraphenylcyclopentadienone. The first step of the experiment was the condensation of benzaldehyde to yield

Acoustic Theory and Synthesis Frequency: Frequency means the number of cycles per second and depending on the amount of cycles per second determines how high or low pitched the sound is and the time that it takes to complete one cycle is called the period. Frequency is measured in Hertz (Hz). And An average human is able to hear sounds between 20Hz and 20,000Hz. As the cycles per second increases, the smaller the wavelengths become, therefore there is a higher frequency which will cause

to controlling an outcome. A dialectical (Divided) method of argument by 19th Century German philosopher, G.W.F. Hegel. It is a method Comprised of Thesis, antithesis, and synthesis. The Hegelian Dialectic. A process where the contradiction between the Thesis and Antithesis resolves to a higher level of truth, the synthesis. Also knows as the Problem, Reaction, Solution. Its getting to the truth by exchange of logical arguments. When manipulating this method a person or group of people are swayed

4.0 DISCUSSION The biological method of quantum dot synthesis using F. oxysporum has been proven to successfully synthesize highly photostable and luminescent QDs in an environmentally friendly manner. However, in order to increase the demand for biological methods of production, the yield of QDs synthesized by this method must be increased. This study considers several factors that affect QD synthesis by fungi and modifies them in F. oxysporum in order to increase QD yield. The fungus, F. oxysporum

photocleavable protecting group at the N3 position of thymidine, and duplex formation was achieved by photoradiation at 365 nm for 5 h (Iwase et al., 2003). NPOM-caged dT (X) introduced by the Deiters group is of particular interest. Figure 2.1.39 shows the synthesis of NPOM-caged thymidine phsophoramidite S.62 (Lusic et al. 2007) from nucleoside S.63 using reagent S.64, and DNA incorporating NPOM-caged thymdine was prepared by standard phosphoramidite chemistry and irradiated at 365 nm to afford active

One of the largest contributors to electronic music today is Thaddeus Cahill (Lejaren Hiller, Electronic Music). His telharmonium was created with an assembly of rotary generators and telephone receivers to convert electronic signals to into sound (Lejaren Hiller). He developed his invention from 1895 and continued to work on it even though there were no ways for the sounds being created from the electrical signals to be heard. Speakers or amplifiers were non-existent for some time even after the

A 1,3,4-thiadiazole library was constructed by solid-phase organic synthesis. The key step of this solid-phase synthesis involves the preparation of polymer-bound 2-amido-5-amino-1,3,4-thiadiazole resin by the cyclization of thiosemicarbazide resin using p-TsCl as the desulfurative agent, followed by the functionalization of resin by alkylation, acylation, alkylation/acylation, and Suzuki coupling reaction. Both the alkylation and acylation reactions chemoselectively occurred at the 2-amide position

current experiment introduces the concept of green chemistry on microwave heating to synthesise aspirin, instead of using conventional heating methods. Introduction Aspirin synthesis is a popular experiment undertaken in most organic chemistry teaching laboratories (Montes et al., 2006). Most experimental procedures for aspirin synthesis are undertaken to study the carbonyl nucleophilic substitution reactions either under basic or acidic conditions (Polshettiwar and Varma, 2008; Varma, 2010). However,