metallation

metallation

[‚med·ə′lā·shən]
(organic chemistry)
The direct replacement of a hydrogen atom by a metal atom in an organic molecule to form a carbon-metal bond.
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This has created an exciting opportunity to understand how ethylene signalling may be controlled via metallation of ETR1 with copper.
Chloro[5,10,15,20-tetrakis-(4-methylphenyl)porphyrinato manganese(III)] (MnTTPCl) was prepared from the corresponding porphyrin base, which was previously reported and fully characterized [33], by using classical metallation of the porphyrin-free ligand (in ethanol at porphyrin: manganese ratios of 1: 20-1:30) [34].
Alonso, "Electrochemical metallation with Ni(II) and Al(III) of 5,10,15,20-tetrakis(phydroxyphenyl)porphyrin: effect of ultrasound," Electrochimica Acta, vol.
The metallation of porphyrin and axial ligation with different phenols were further supported by the emergence of two new bands at 500-400 [cm.sup.-1] and 650-350 [cm.sup.-1] assigned to zinc-nitrogen (Zn-NPor) [41] and zinc-oxygen (Zn-O) vibrational modes, respectively.
Future work will include determination of the quantum yield and metallation of the compound.
[10] The metallation of lithium morpholine to obtain the complex di(morpholine)titanium dichloride is similar to the metallation of indene and cyclopentadiene to obtain di(indenyl)titanium dichloride and di(cyclopentadienyl)titanium dichloride respectively and they were subsequently developed to enviable demand complexes.
Modifying agents include alkylating, amidating, esterification, metallation, phosphorylating, sulfonating, oxidizing, and reducing agents.
In order to make sure that metallation occurs ortho to the boron, the Piers group found it necessary to block the para position with an isopropyl group.
(49) Experimental study of metallation mechanism in TMEDA/metal alkoxide modified anionic polymerization.
Furthermore, in vitro evolution technology has facilitated the discovery of DNAzymes and ribozymes capable of catalyzing a broad range of reactions, including cleavage (1, 21-23) and ligation of nucleic acids (24), porphyrin metallation (25), and the formation of carbon-carbon (26), ester (27), or amide bonds (28).
[[Eta]] was little affected below about 70% amide group metallation, but was diminished above 70%, as shown in Fig.
Reactions requiring the use of strong acids such as nitric acid (nitrations) or powerful organometallic bases such as butyl lithium (metallations) are now routinely possible in flow chemistry.