Advanced organic synthesis lect 2

... bp 8 6-8 7°, n£° 1.4729 endo-l-Acetoxy-8,8-dimethylbicyclo[2.2.2]oct-3-one-5,6-dicarboxylic acid gives the corresponding olefin, l-acetoxy-8,8-dimethylbicyclo[2.2.2]oct-2-ene-5-one, mp 5 9-6 0° after ... pentane (Chapter 8, Section IV) end0-l-Acetoxybicyclo[2.2.2]oct-3-one-5,6-dicarboxylic acid gives the corresponding olefin, l-acetoxybicyclo[2.2.2]oct-2-en-5-one, mp 4 9-5 0° after recr...

Ngày tải lên: 04/06/2014, 15:24

... during the reaction: O • OH – Ru(VII) + 2e → Ru(V) TBSO 78% H3C CH3 HCH3O OTBS H H O O O O H O TBSO 2Ru(V) → Ru(VI) + Ru(IV) Julia-Lythgoe Olefination Ru(VI) + 2e– → Ru(IV) Griffith, W P.; Ley, S V.; ... Aldehyde (Ketone) R-CHO (RCOR ') hemiketal (hemiacetal) Oppenauer Oxidation Chromium (VI) Oxidants Sodium Hypochlorite N-Bromosuccinimide (NBS) Bromine Cerium (IV) Oxidants R Pyridinium Di...

Ngày tải lên: 04/11/2014, 22:55

... applications of controlled microwave heating in modern organic synthesis, and discusses some of the underlying phenomena and issues involved Introduction High-speed synthesis with microwaves has ... growing availability of microwave reactors in many laboratories, routine synthetic transformations are also now being carried out by microwave heating The benefits of contr...

Ngày tải lên: 05/03/2014, 20:20

... challenges in using DTS to apply natures strategy for controlling chemical reactivity to molecules that can only be accessed through laboratory synthesis A reactant for DTS consists of three ... on several factors First, the absolute concentration of the reactants is critical For a DNA-templated reaction to proceed with a high ratio of templated to nontemplated product...

Ngày tải lên: 05/03/2014, 21:20

... Copyright © 2001 Wiley-VCH Verlag GmbH ISBNs: 3-5 2 7-3 041 5-0 (Softcover); 3-5 2 7-6 001 3-2 (Electronic) Organic Synthesis Workbook II C Bittner, A S Busemann, U Griesbach, F Haunert, W.-R Krahnert, A Modi, ... Copyright © 2001 Wiley-VCH Verlag GmbH ISBNs: 3-5 2 7-3 041 5-0 (Softcover); 3-5 2 7-6 001 3-2 (Electronic) Organic Synthesis Workbook II C...

Ngày tải lên: 03/04/2014, 12:15

Ngày tải lên: 03/04/2014, 12:18