与 «GRIGNARD REAGENT»相关的英语书籍
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1
Handbook of
Grignard Reagents
Other recommended preparations can be found within this book (see especially
Chapters 3 and 4) and in the literature [continuous process Ref. 41 and batch
process Refs. 42, 43]. VI. ALTERNATIVE METHODS FOR GRIGNARD REAGENT
...
Gary S. Silverman, Philip E. Rakita, 1996
2
Mechanism and Synthesis
2.4.3 Reaction of a Grignard reagent with oxiranes — the preparation of primary
alcohols So far. we have seen that Grignard reagents act as nucleophiles, and
react with carbon electrophiles such as carbonyls. The one reaction we have not
...
Peter Taylor, Open University, 2002
3
Organic Chemistry: An Acid—Base Approach
15.10 Write out the reaction products formed when the Grignard reagent of 1-
bromopropane is mixed with acetylene. 15.11 Is a Grignard reagent formed when
benzyl bromide is heated with magnesium metal in a mixture of diethyl ethyl and
...
4
Grignard reagents: new developments
The Grignard reagent is one of the most useful and versatile reagents known to the organic chemist and 100 years after its discovery, this book presents authoritative perspectives on the significant developments taking place using Grignard ...
Herman Glenn Richey, 2000
5
The Last American Frontier
R"X +Mg^»R-Mg-X Alkyl Alkylmagnesium halide halide CH3-I + Mg^»CH3-Mg-I
Methylmagnesium iodide C2HrI + Mg^»C2H5-Mg-I Ethylmagnesium iodide For
an alkyl halide, the ease of formation of Grignard reagent is in the order RI > RBr
...
6
Organic Reactions Stereochemistry And Mechanism (Through ...
ethyl groups provide a hydrocarbon environment which acts as a solvent for the
alkyl portion of the Grignard reagent (I, Scheme 4.131). O R--Mg— X Vsolvation
of an alkyl magnesium halide by diethyl ether X R X 2RMgX « R:Mg + MgX2 R—
...
7
Comprehensive Organic Functional Group Transformations: ...
methodology has been applied to generate other (trialkylsilyl)methyl Grignard
reagents <84TL4249. 92CL2047). For example, treatment of l,2-bis(bromomethyl
)tetramethyldisilane with magnesium in ether gave the di-Grignard reagent (284)
in ...
Alan R. Katritzky, Otto Meth-Cohn, Gordon W. Kirby, 1995
oxidized to Mg2+ and produces a species with the general formula RMgX, called
a Grignard reagent. Mg diethyl ether A Grignard reagent Isolated Grignard
reagents are actually polymetallic clusters, often having two, four, or six
magnesium ...
9
Organic Reactions And Their Mechanisms
Formation of a Grignard reagent involves the transfer of an electron from the
metal to the alkyl halide to give an anion radical and its fragmentation to an alkyl
radical and a halide anion. The alkyl radical rapidly combines with a metal atom
to ...
10
Aliphatic Compounds: Sulphur, Phosphorus Silicon & Boron
of the desired Grignard reagent; this is referred to as the entrainment method
However, the best entrainment technique is to add ethylene dibromide (3
molecules or more) and to use magnesium in excess (6 molecules or more; et ai,
1959).
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Indoxamycins A, C and F
The final tetrahydrofuran ring is formed by an efficient cascade (figure 3), beginning with substrate-controlled 1,2-addition of a Grignard reagent ... «Chemistry World, 一月 14»
'Pot-in-a-pot' technique makes impossible cascade reactions easy
... ran an aqueous reaction inside the thimble before using an extremely water-sensitive magnesium-based Grignard reagent on the outside [1]. «Chemistry World, 四月 08»
First Mg(I) complex made
'The fact that the synthetic method employed, reduction of a Grignard reagent with elemental potassium, is so simple adds to the beauty and ... «Chemistry World, 十一月 07»
Interview: Creating a stir
For ten years, we struggled to achieve a catalytic asymmetric 1, 4-addition of a Grignard reagent. We knew deep down that it was achievable ... «Chemistry World, 六月 07»
