منابع مشابه
Enantioselective Addition of Grignard Reagents to Aldehydes
The addition of Grignard reagents to aldehydes in the presence of chiral aminoalcohols shows a moderate enantioselectivity. The study carried out with a series of ligands allows the correlation between the structural characteristics and their reactivity. Introduction The use of chiral aminoalcohol to lead asymmetrically nucleophilic additions of organometallics to carbonyl compounds is a field ...
متن کاملMechanophore-linked addition polymers.
There is growing interest in the use of mechanical energy to alter the molecular and supramolecular structure of polymers to create stress-responsive materials.1a-l Chemical reactions that are accelerated by force remain poorly understood, and there is a need for the rapid discovery of new mechanophores (i.e., stress-sensitive units). Screening putative mechanophores, however, is a slow process...
متن کاملCyanobacterial aldehyde deformylase oxygenation of aldehydes yields n-1 aldehydes and alcohols in addition to alkanes.
Aldehyde-deformylating oxygenase (ADO) catalyzes O2-dependent release of the terminal carbon of a biological substrate, octadecanal, to yield formate and heptadecane in a reaction that requires external reducing equivalents. We show here that ADO also catalyzes incorporation of an oxygen atom from O2 into the alkane product to yield alcohol and aldehyde products. Oxygenation of the alkane produ...
متن کاملTin(II)chloride Mediated Addition Reaction of Bromonitromethane to Aldehydes
As an electrophile, bromonitromethane was used as a versatile reagent in the synthesis of aminothiophenes and their derivatives as well as in the reaction with nucleophiles such as thiolates, sulphides, thiourea, thiocyanate, iodide and phosphorus based species [1]. Bromonitromethane contains only one carbon atom, therefore it is relevant to C-1 chemistry [2]. In chemical synthesis, it has two ...
متن کاملReagent controlled addition of chiral sulfur ylides to chiral aldehydes
The degree of reagent and substrate control in the reaction of chiral sulfur ylides with chiral aldehydes has been investigated. Specifically, the reactions of the two enantiomers of the chiral benzyl sulfonium salt 1 with glyceraldehyde acetonide were studied in detail. Of the two new stereogenic centers created, it was found that the C1 stereochemistry was largely controlled by the reagent, w...
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ژورنال
عنوان ژورنال: Journal of Polymer Science Part A: Polymer Chemistry
سال: 2000
ISSN: 0887-624X,1099-0518
DOI: 10.1002/1099-0518(20000701)38:13<2293::aid-pola10>3.0.co;2-m