- Book Review
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1997 October - 18 articles
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This volume provides four excellent reviews refereed at least by one expert in the field.[...]
This book is intended as a "guide for advanced students and chemists entering the field of molecular modeling".[...]
In order to be of any use computer software must be either easy to use or be supported by very well written manuals. Unfortunately, STN (previously CAS-Online) is neither.[...]
This monograph contains 18 lectures given by the experts in their field at the Symposium Advances in the Chemistry of Insect Control", held at Queens, College Cambridge, on 18-21 July 1993.[...]
This final supplement to the excellent series of Comprehensive Polymer Science books is fully up to the high standard set by the originals.[...]
See also [1, 2].[...]
As part of our continuing studies of stereocontrol during the intramolecular Diels-Alder (IMDA) reaction leading to medium rings [1-3], we have targeted poitediol [4] as a structure of interest accessible through this technology.[...]
Preparation of the title compound from the hydroxy ester [1] proved difficult to impossible with almost all protecting groups under a variety of reaction conditions.[...]
Hydroboration of tert-butyl-3-methoxy-5,5-dimethyl-6-heptenoate [1] with either BH3ÖTHF or BH3ÖMe2S provided the terminal alcohol title compound, in unoptimized, nonreproducable and disappointingly low 30% yield.[...]
Hydroboration of tert-butyl-3-methoxy-5,5-dimethyl-6-heptenoate [1] with either BH3…THF or BH3…Me2S provided the terminal alcohol tert-butyl-3-methoxy-5,5-dimethyl-7-hydroxy-heptanoate, in unoptimized, nonreproducable and disappointingly low 30% yiel...
The crude aldehyde, tert-butyl-3-methoxy-5,5-dimethyl-7-oxo-heptanoate [1] was treated with pinacol E-1-trimethylsilyl-1-propene-3-boronate [2] in petroleum ether at room temperature to provide a 50% yield of the diastereomeric boronic esters, which...
The diastereomeric alcohols [1], either separately or as a mixture, were converted under acidic Peterson olefination conditions to the title E-diene.[...]
To a slurry of LAH (65 mg, 1.7 mmol) in ether (4 ml) at 0 ƒC under Ar, the diene ester [1] (487 mg, 1.7 mmol) in ether (5 ml) was added dropwise.[...]
Using the Collins oxidation procedure previously described [1], the title aldehyde was prepared from the diene alcohol [2] as a colorless oil in 76% yield.[...]
To a stirred solution of the diene aldehyde [1] in dry THF under Ar at -78 ƒC, vinylmagnesium bromide in THF was added via a syringe.[...]
Although the title compound has already been prepared in four steps [1] or three steps [2] from D-galactose, this selective tosylation consists of only a two step synthesis avoiding the preparation of several intermediates and affording much higher o...
See also [1,2]. To the solution of 2-bromobenzaldehyde (18.5 g, 100 mmol) and sylvan (20 ml, 250 mmol) in 100 ml of benzene 5 ml of Me3SiCl was added at room temperature.[...]