Pentakis

Stmcturally novel pyrazole derivatives include the propellene 2,3,4,5,6-pentakis(pyrazol-r-yl)pyridine 1 and the corresponding 3 ,5 -dimethylpyrazole derivative 2<96T11075>. Poly(pyrazol-l-ylmethyl)benzenes, such as 3, have been prepared as multidentate ligands <95AJC1587>. Solid phase synthesis of structurally diverse 1-phenylpyrazolones was reported, with application to combinatorial synthesis <96SL667>. 

The enantiomerically pure inositol 1-phosphorothioate (102) has been prepared from racemic 2,3,4,5,6-pentakis-O-benzyl-myo-inositol using resolution via camphanate esters. Direct preparation of (102) from 6-0-phosphorothiono-D-glucose using inositol synthase was not successful. The same authors have reported similar work elsewhere. ... 

The multiplying affixes di-, tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-, undeca-, and so on are used to indicate a set of identical unsubstituted radicals or parent compounds. The forms bis-, tris-, tetrakis-, pentakis-, and so on are used to indicate a set of identical radicals or parent compounds each substituted in the same way. The affixes hi-, ter-, quater-, quinque-, sexi-, septi-, octi-, novi-, deci-, and so on are used to indicate the number of identical rings joined together by a single or double bond. 

In the case of complex entities such as organic ligands (particularly if they are substituted) the multiplying prefixes bis-, tris-, tetrakis-, pentakis-,. . . are used, i.e.,-kis is added starting from tetra-. The modified entity is often placed within parentheses to avoid ambiguity. 

Fig. 3. Representive stmctures for compounds of molybdenum(V) (a) dimolybdenum dodecachloride [26814-39-17, M02CI2Q, the dimer of molybdenum pentachloride (b)pentakis(thiocyanato)oxomolybdenum(V), MoO(NCS)g (c) Mo20 (NCS)g (d) Mo2(S2)g (e) Mo2Sg (f) Mo2S (S2CNR2)2 (g)...

Azabicyclo[2.2.0]hexa-2,5-diene, pentakis-(pentafluoroethyl)-synthesis, 2, 304 2-Azabicyclop.2.0]hexadiene reactivity, 7, 360 thermal isomerization, 7, 360 2-Azabicyclo[2.2.0]hexa-2,5-diene synthesis, 2, 304 1 -Azabicyclo[3.2.0]hexadiene synthesis, 7, 361 1 - Azabicyclo[2.2.0]hexane reactions, 7, 344 ring strain... 

In the reaction of CF Cl3 SCl with triethylamine, the yield of the product (CF Cl3 S)2C=CHN(C2H5)2 decreases with decreasing n [fri] (equation 7) (Table 2). 2,3,4,5-Tetrakis(trifluoromethylthio)pyrrole salts react with sulfenyl chloride or SjjCl2 (x = 1,2) to give N-sulfenylaled pyrroles as well as dipyrrolylsulfane and -disulfene. Pentakis(trifluoroniethylthio)pyrrole is a mild sulfenylating... 

The increasing order of acidity, CF3H < CF3CF2H < (CF3)2CFH < (CF3)3CH, and the fact that pentakis(tnfluoromethyl)cyclopentadiene (pK < -2 [69]) is about 10 times more acidic than cyclopentadiene, whereas pentafluorocyclopentadiene IS onlv sliffhtlv more acidic 1701. illustrate that a trifluoromethvl eroup has a much... 

Chemical Neme Pentakis(N -acetvl-L-glutaminato)tetrahydroxvtrialuminum Common Name -Structural Formula ... 

A valence bond isomer of pentakis-(trifluoromethyl)-l, 3-diazepine (44) was prepared from (43) (81TL1113) (44) can be transformed thermally or photochemically to a 2,4-diazabicyclo(3.2.0)hepta-2,6 diene (45), which was subsequently photolysed to an imidazole in an anionic process. Compound (45) is highly acidic arising out of the bishomoaromaticity of the anion and forms a salt with Et3N (81TL1369). 

The prototype of an electron poor cyclopentadienyl ligand is the pentakis(carbo-methoxy)cyclopentadienyl ligand C5(C02Me)5 of which the coordination chemistry was extensively studied. A comprehensive review has just appeared in the literature [20]. 

Purex process, 6,940 Barium, pentakis(diacetamide)-stereochemistry, 1, 99 Barium alkoxides synthesis, 2,336 Barium complexes cryptands, 3,53 phthalocyanines, 2, 863 porphyrins, 2,820 pyridine oxide, 3,9 urea, 3,9... 

Molybdenum, pentakis(acetonitrile) [methylenebis-(diphenylphosphine)]-structure, 1,77... 

Rhodium, pentakis(trialkyl phosphite), 4, 929 Rhodium, tetrakis(acetato)di-antitumor properties, 4,936 ozonization, 4, 951... 

Ruthenium, pentaammineisonicotinamido-electron transfer, 1,375 with copper(I). 1,369 with hexaaquachromium, 1, 367 Ruthenium, pentakis(trifluorophosphine)-NMR, 1,41... 

Uranium, pentakis(dimethyl sulfoxide)dioxy-stereochemistry, I, 74 Uranium, pentakis(urea)dioxy-stereochemistry, 1,74 Uranium, tetrakis(bipyridyl)-stereochemistry, I, 94 structure, 1, 24... 

The reaction of ethylbenzene with 5 mol of 3 under the same reaction conditions for the alkylation of toluene with 3, gave pentakis 2-(methyldichlorosilyl)ethyl -(25%). tetrakisl2-(methyldichlorosilyl)ethyl]-(9%). tris[2-(methyldichlorosilyl)-... 

The pentakis(methoxycarbonyl)cyclopentadiene is a strong acid that displaces weaker organic acids upon interaction with their metal salts (Equation (32)) 2124... 

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