Functional group

Prednisolone 1. Structure The two ketone groups will be sp2 hybridised and so are the carbon-to-carbon (C-to-C) double bonds. The carbon atoms that are part of alkanes and the alcohol groups will be sp3 hybridised. There isn’t any resonance in the molecule. 2. Functional Groups There are 3 different functional groups, excluding the alkane and cycloalkanes. There are two aliphatic ketones and three aliphatic alcohols along with a cyclohexadiene, where one of the ketones is found. The alcohols

nucleophilic attack in an Sn2 reaction. 2-naphthol (the reactant) contains two fused benzene rings with an OH group off of a 2o carbon; it’s the presence of the OH group that helps differentiate it from nerolin (the product). This OH group also makes the entire molecule comparatively more polar than nerolin. Nerolin also contains two fused benzene rings, but instead of an OH group it has an ethoxy group (CH3CH2O-) off of a 2o carbon. This makes the entire molecule comparatively less polar and greater in

and Cristel Bernice T. Wee Group 10 2G-Medical Technology Organic Chemistry Laboratory ABSTRACT Hydroxyl group refers to a functional group containing OH- when it is a substituent in an organic compound. It is also known as the characteristic functional group of alcohols and phenols. On the other hand, carbonyl group refers to a divalent chemical unit consisting of a carbon and an oxygen atom connected by a double bond. It is known as the characteristic functional group of aldehydes

Sediment properties were measured from three surface scrapes of sediment taken at each quadrat in Essex and Morecambe. These sediment scrapes were frozen at -20°C for subsequent analysis. In the laboratory, 5g of the sediment was air dried, gently crushed and passed through a 2mm sieve. Particle size distribution of the <2 mm fraction was undertaken following Malvern Mastersizer protocol (v1.3) (http://www.geog.cam.ac.uk/facilities/laboratories/techniques/psd.html) at the University of Cambridge

Natural fibers represent environmentally friendly alternatives to conventional reinforcing fibers (glass, carbon, kevlar). Because of their hollow and cellular nature, natural fibers perform as acoustic and thermal insulators and exhibit reduced bulk density [33, 34]. Some of the disadvantages and limitations of natural fibers, when used as reinforcement for composites, are related to the lack of proper interfacial adhesion, poor resistance to moisture absorption, limited processing temperature to

What are PFCs? (Property and Applications) Perfluorinated compounds (PFCs) are a group of manmade organfluorine chemicals, containing a chain of carbon atoms surrounded by C-F bonds often with a charged functional group in the end. The fluoroalkyl chain normally exhibit hydrophilic property, while the typical functional group such as sulfonate salt or acid tends to be hydrophobic. These unique characteristics make the compound oil and water repellent at the same time, which contributes to the widely

We sampled the biota across a range of spatial scales at six sites within two locations, Essex mud flats and Morecambe Bay in summer 2013. Within each of two locations, sampling was undertaken at Fingringhoe Wick (FH), Abottshall Marsh (AH) and Tillingham Marsh (TM) in Essex, and Cartmel Sands (CS), West Plain (WP) and Warton Sands (WS) in Morecambe Bay. In order to determine how changes in spatial scale affected food web structure and ecosystem processes, we sampled each site at four spatial scales

Analytical reagent grade sodium hydroxide, hydrogen peroxide, ethanol, AA, N,N′-methylenebisacrylamide (MBA), AMPS, potassium Persulfate (KPS) were supplied by Tianjin Fuchen Chemicals. Corn straws were purchased from Huimin County, Binzhou City, Shandong Province. 1.1 Preparation of sulfonic cellulose by pretreating corn straws Dry corn straws were ground and sieved using a 40-mesh sieve. Then, the resulting corn straw crash was made alkaline with 15% NaOH solution at 55 °C in a water bath for

multi-step reactions to take place, and creates numerous types of products.1 Today, Friedel-Crafts reactions are among the most used electrophilic aromatic substitution reactions. In the electrophilic aromatic substitution class of reactions, functional groups are substituted onto an aromatic ring.2 Products such as ketones, hydrocarbons and phenols, phenol ethers, and keto acids can be produced by electrophilic aromatic substitution.1 These products can then undergo other reactions, allowing for the

Phytochemical Studies of Cassia fistula Bark and Leaves Acetone Extracts and FTIR analysis. Rakhi Mandloi1, Prakash Solanki1*, Ravin Chouhan1 and Mahesh Baviskar2. 1 Govt. Holkar Science College, Indore Madhya Pradesh ( India ) 452017. 2 Govt. P.G. College, Sendhwa District Barwani, Madhya Pradesh ( India ) 45166. *Corresponding author 427, Shiv City behind IPS Academy, Indore Madhya Pradesh (India) 452012. Email- drprakash3378@rediffail.mail,com