(+)- and (-) – Carvones Purpose Compare (+)- carvone from caraway oil to (-)- carvone from spearmint oil‚ using gas chromatography. Experimental Odor: Smell containers of spearmint and caraway oil and two carvones. Analytical Gas Chromatography: Put five individual samples by different group members into Gas Chromatograph to calculate the percent composition. Claudia tested S- (+)- carvone and R- (+) – Limonene‚ Daniel tested Spearmint oil (pure)‚ Greg tested R- (-)- carvone and I tested Caraway
Premium Chromatography Gas chromatography
Jacobsen’s Method of Epoxidation of an Alkene | | Abstract Various types of reactions were completed to first create and then use Jacobsen’s catalyst in the asymmetric epoxidation of an unknown alkene with bleach in the laboratory. The chiral epoxide synthesized was then characterized with GC/MS and NMR. With this information the unknown alkene was able to be identified as 4-chlorostyrene. Introduction Organisms have evolved with mechanisms that use specific enantiomers of molecules
Premium Acetic acid Stoichiometry Solvent
Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobsen’s Catalyst Justin Lindsey 12/08/96 Chem 250 GG Professor Tim Hoyt TA: Andrea Egans Abstract. 1‚2 diaminocyclohexane was reacted with L-(+)-tartaric acid to yield (R‚R)-1‚2-diaminocyclohexane mono-(+)-tartrate salt. The tartrate salt was then reacted with potassium carbonate and 3‚5-di-tert-butylsalicylaldehyde to yield (R‚R)-N‚N’-Bis(3‚5-di-tert-butylsalicylidene)-1‚2-cyclohexanediamine‚ which was then reacted with Mn(OAc)2*4H2O
Premium Acetic acid Solvent Chromatography
Activity of Carvones Kyle Peterson Chem. 243a Matt Judd‚ Sec. 25 Date Performed: 10/29/03 Abstract: The objective of this experiment is to use Gas Chromatography to distinguish between two enantiomers of carvone from caraway oil and spearment oil and to find the 2 carvone’s optical activity as well as percent carvone in spearment and caraway oil. It was found that S-carvone had an optical activity of 0.0047 and R-carvone had an optical activity of 0.516 and that spearment oil is 59% carvone and caraway
Premium Gas chromatography Chromatography Chemistry
B) Due date: Oct 5‚ 2010 1 - Theory and mechanism Epoxidation is a reaction of an alkene with a peroxycarboxylic acid (also called peracid) to produce an epoxide product‚ generally performed in inert solvents‚ such as dichloromethane. The epoxide product is a cyclic ether in which the ring contains three atoms. The alkene gains an oxygen from the peracid in a syn fashion. In this experiment‚ R-(－)-carvone is reacting with MCPBA‚ a peracid‚ to produce the epoxide product. Balanced equation:
Premium Oxygen Hydrogen Hydrogen peroxide
Epoxidation Reactions Lab Report 2 Abstract An oxygen atom is transferred from a peroxy acid to the carbon=carbon double bond thus forming an epoxide. Scheme 1. Oxone Epoxidation. Scheme 2. mCPBA Epoxidation. The percent yield for the Oxone epoxidation reaction was 65% yield and the mCPBA epoxidation reaction was 70% yield. Oxone is the greener alternative because using mCPBA is twice as expensive as Oxone and leaves behind the epoxide plus m-chlorobenzoic acid while Oxone creates non-toxic
Premium Chemistry Nuclear magnetic resonance
(b) O H O O CH2 C O n C (c) N O H O CH2 C O O n (d) Cl 4. Write in chemical skeletal structures of reactants or products for the following reactions: (8 pts) H O H mCPBA CH 3 H O CH 3 mCPBA H 3 CH 2C H OsO4‚ NMO O HIO4‚ H2O THF H O 5. Starting with acetylene‚ devise a reasonable synthesis using the reactions covered in class to this point to prepare (4R‚ 5R)-4‚5-dibromooctane. Show all reaction
Premium Chemistry Organic chemistry Chemical reaction
Clays are one of the important natural materials‚ which have been examined for catalytic applications. Clays are characterized by a layered structure and hence they are slippery when wet. They are broadly classified as cationic or smectite type (having layer lattice structure in which two-dimensional oxyanions are separated by layers of hydrated cations) and anionic or brucite type (in which the charge on the layer and the gallery ion is reversed complimentary to smectite type). Anionic clays are
Free Hydrogen Oxygen Oxide
Malaysia Innovation : Products & Services | MATRADE 3/26/13 2:27 PM Home | Malaysia Products Directory | Malaysia Services Directory A+ A A- RSS | Site Search | Language English Search... FOREIGN BUYERS > Industry Capabilities > Malaysian Innovation > Malaysia Innovation Products & Services MATRADE Network - Please select - Malaysia Innovation : Products & Services ICmic ICmic is a Fabless IC design Company which designs‚ develops and markets advanced mixedsignal
Premium Malaysia Oil palm Palm oil
ETHERS Classification of Ethers: Symmetrical ethers – two groups attached to O are identical Ex. CH3CH2OCH2CH3 – diethyl ether Unsymmetrical ethers – two groups attached to O are not identical Ex. CH3CH2OCH3 – ethyl methyl ether Physical Properties of Ethers: Ethers have much lower boiling points compared to alcohols of comparable MWs. BPs of ethers increases with increasing MW. BPs of isomeric ethers increase with increasing alkyl chain length. BPs of ethers are about the
Premium Nucleophile Alcohol Diethyl ether