'Nabh 4' presentation slideshows

Alcohols

Alcohols. Biological Activity Nomenclature Preparation Reactions. Some Alcohols. Alcohols are Found in Many Natural Products. Paralytic Shellfish Poisoning. Ethanol: the Beverage. Excess NADH can cause Metabolic Problems. Methanol: Not a Beverage. Synergistic and Metabolic Effects.

643 views • 64 slides

Hydrogen

Hydrogen. Chemistry compounds. Hydrogen. Occurrence Most abundant element in the Universe 3rd most abundant element in the Earth's crust, found in minerals, oceans and all living things Hydrogen is a unique element, does not belong to any groups in the periodic table.

865 views • 54 slides

Lecture 6 CM3024

Lecture 6 CM3024. Spectral Interferences. Emission Interference is controlled by: Correct alignment of the furnace Cleanliness of the furnace and spectrometer sample compartment windows. avoidance of extreme high atomisation temperatures Background Absorption:

468 views • 32 slides

Addition of Metal-H bonds to Carbonyl Groups

Addition of Metal-H bonds to Carbonyl Groups. Group 13 Hydride-Donor Reagents. Chemoselectivity. reactivity towards nucleophiles. = reacivity towards metal-hydride. LiAlH(O- t -Bu) 3. LiAlH(OMe) 3. LiAlH(O- t -Bu) 3. LiBH(CH 2 CH 3 ) 3 Rt , 2 min. (LiAlH 4 ).

432 views • 21 slides

Hydride Generation Techniques

Hydride Generation Techniques. Hydride Generation Technique. Reduction Reaction : transform the Analyte in sample to Metal Hydride Metal Hydrides is easy to Evaporation Metal Hydrides is easy to Atomization Analysis with Flame AAS

2.68k views • 20 slides

320

Chapter 15: Alcohols, Diols, and Thiols 15.1: Sources of Alcohols (please read) Hydration of alkenes (Chapter 6) 1. Acid catalyzed hydration 2. Oxymercuration 3. Hydroboration Hydrolysis of alkyl halides (Chapter 8) nucleophilic substitution

187 views • 18 slides

Lecture 3

Lecture 3. Reduction of D-(+)-Camphor. Introduction. Reduction of Ketones and Aldehydes. Mechanism I. In Chem 30BL, sodium borohydride (NaBH 4 ) will be used as the reducing agent

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Pd-Bi nanoparticles on anionic-exchange resins for oxidation of polyols

324 views • 16 slides

Neutron induced radiation damage in graphite: Preliminary Results

316 views • 14 slides

REACTIONS OF AlDEHYDES AND KETONES

REACTIONS OF AlDEHYDES AND KETONES. L.O.: Outline the mechanism for nucleophilic addition reaction of aldehydes and ketones with hydrides.

339 views • 11 slides

354 views • 7 slides

Oxidation of Amino acids by Manganese (III) in aqueous Sulphuric acid

Current study describes a methodfor the preparation of chiral (3R)-azepan-3-amine(Compound 2)with high purity and yield, which may useas an intermediate or starting material to synthesize one of the most popular antibioticbesifloxacin hydrochloride. Chiral moiety of (3R)-azepan-3-amine (Compound 2)is prepared from (3R)-3- aminoazepan-2-one(Compound 1)by reducing it with novel reducing agent viz. NaBH4/ AlCl3, NaBH4/ CaCl2, NaBH4/ DMS, NaBH4/ BF3 orLiAlH4 using appropriate solvents viz. tetrahydrofuran (THF), isopropylether (IPE), toluene or acetonitrile (ACN).Purity and yield of furnished chiral amine is very highcompared to reported methods. The method is cost effective and commercial applicable.

53 views • 4 slides

What is the best reagent to carry out the transformation below?

What is the best reagent to carry out the transformation below?. PBr 3 HBr/ether NBS/h v /CCl 4 Br 2 /h v NBS/H 2 O/DMSO. Which sequence of reagents is best to accomplish the following transformation?. KOH followed by BD 3 /THF KOH followed by NaBH 4 Mg/ether followed by D 2 O

328 views • 3 slides

Synthesis

Synthesis. AgNO 3 , ATP, NaBH 4. (rt, 1 atm). Concentrate with ultracentrifuge at 45K and/or ppt using i-PrOH. Ag:ATP:BH 4 - controls size 1:0.1:16 ? large NPs (5 - 10 nm) 1:5:16 ? small NPs (1.8 - 2.5 nm) (bright yellow). 1:0.1:16 ? 5 - 10 nm.

168 views • 1 slides