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We are indebted to Prof. 5. Julia, Dr. J.-C. Clinet and Dr. G. Linstrumelle for submitting experimental details from the dissertation of Clinet (Paris, November 1980), prior ta publication of full papers on this subject. [Pg.85]

There are now clear experimental indications that nanotubes are not perfect in the sense defined in the introduction[12,13,19,20]. The first full paper dedicated to this issue was by Zhou et o/.[19], where both pressure and intercalation experiments indicated that the particles in the sample (including nanotubes) could not be perfectly closed graphitic structures. It was pro-... [Pg.74]

In Pedersen s first full paper on the synthesis of macrocyclic polyethers, he reported the synthesis of thirty-three macrocycles having a variety of ring sizes and substituents. These compounds were prepared by a variety of routes and Pedersen offered a scheme in which he generalized the synthetic approaches he used. He designated the four principal methods V , W , X , and Y . The methods are diseussed individually. [Pg.19]

The first synthesis of 18-crown-6 was reported by Pedersen in his first full paper on erowns . The method used was potassium r-butoxide catalyzed cyclization of hexa-ethlyene glycol monochloride in 1,2-dimethox ye thane, as shown in Eq. (3.7), below. Unfortunately, the yield by this approach was only 1.8%. ... [Pg.21]

Character between the purely archival journals of full papers and letter journals consisting exclusively of short communications length of papers, 4-8 pages... [Pg.412]

Tliis is one of the most actively developing and closely watched fields of heterocyclic tautomerism—only the study of purines and pyrimidines is of comparable contemporary interest. Tire number of references is so high that many relevant works have had to be neglected, whereas in other sections of this chapter relatively minor contributions have been commented on because they pertained to a field where few contributions are available. Tire selection criteria were (1) all pertinent authors are quoted at least once, (2) full papers are preferred to communications or letters, and (3) recent works are preferred to earlier ones because they usually quote the previous publications. [Pg.16]

The work on insertion reactions of isocyanides was initiated by Yamamoto et ah, and described in a communication in 1968 followed by a full paper a year later (164). This study described the reaction of C5H5Ni(PPh3)CH3 with several isocyanides, from which the products C5HjNi(CNR)- C(=NR)CH3 were isolated [Eq. (2)]. [Pg.29]

The initial work in this field appeared as a communication in 1969 8), and this work was later expanded to a full paper (9). Badley et al. described the synthesis of m-Pt(PEt3)(CNCjH5)Cl2 from Pt2(PEt3)2Cl4 and the isocyanide the bromide complex could be obtained from this complex by addition of bromide ion. These complexes were then observed to react with various substances [Eq. (16)]. A crystal structure study on the complex... [Pg.42]

Subsequent to the initial report by Badley et al. two communications appeared, which reported structural investigations on several products obtained from PtCl4 , methyl isocyanide, and hydrazine 33, 117) these compounds had previously been identified (incorrectly) as six-coordinate platinum(II) species 90). In addition, synthesis work in this area was extended somewhat further by these groups. The details of this work presented in these communications and in later full papers 34, 117) are summarized hy Eqs. (17). [Pg.43]

Published work abstracted covers the period up to the end of 1971. References are not always given to preliminary notes and conference reports when full papers are available. A number of relevant reviews exists (see Table I). [Pg.254]

Silylation-aminations of a variety of other hydroxy-N-heterocycles, for example 4(lH)-pyridinone, 2(lH)-pyrimidone, uracil, 2(lH)-quinoline, and 9(10H)-acridone are described in the full paper, which was published in English [27]. [Pg.61]

Explain the difference between letters, full papers, reviews and conference proceedings. [Pg.402]

The full paper has appeared on the solvolysis of the dibenzyl ester (28) of phosphoenolpyruvic acid and on the related phosphonate ester (29). Reversible phosphoryl migration from the enol oxygen to the carboxy-group occurs readily in (28) and (29) but only to a small extent - and probably not reversibly-in the monoanion (30) and phosphoenolpyruvic acid itself. These observations are readily accounted for in terms of the expected ease of pseudorotation between the various configurations of the... [Pg.100]

It has been pointed out, in the full paper describing the formation of (64) by deoxygenation of the nitrobenzoxazole (62), that the reaction can be rationalized in terms of an intermediate nitroso-compound (63) or compound (65). [Pg.244]

In this paper we will briefly discuss the role of both support and metals as both impact catalysis performance and stabihty. In our early work we discovered that Re imparts important character to Ni in producing an effective catalyst. A large study was completed using a design of experiments. A full paper describing that design is planned. In this paper we provide a smmnaty of the results. Figure 34.3 shows (a) (b)... [Pg.305]

Azines have been prepared by initial condensation of diethoxyphosphinyIhydrazine anions with aldehydes or ketones (Scheme 9). Phosphoryl azides undergo 1,3-dipolar cycloaddition to 2-tetralone enamines to give triazolines, possibly en route to amidines. A full paper on the addition of diethyl dibromophosphoramidate to alkenes(leading to the synthesis of 2-bromoalkylamines) has appeared. ... [Pg.145]

Besides MALDI-TOF mass spectroscopy, by which the monodispersity of all the above described dendritic compounds was proven, H-NMR spectroscopy was again found to be a most informative characterization method, since most signals from the hydrogens at the different stereogenic centers have unique shifts. The resonances from analogous protons of the peripheral, interior and central units were always well separated and shifted towards lower field on going from outside to inside (for detailed discussion see our recent full paper [90]). [Pg.161]

The preparation of [5]rotane 81 (pentaspiro[2.0,2.0.2.0.2.0.2.0]pentadeeane), again includes one step of carbene addition, by the Simmons-Smith reaction, to 13-methyle-ne-tetraspiro[2.0.2.0,2.0.2.1]tridecane 8026). A full paper on the subject appeared later 27 >. [Pg.17]

The syntheses of [4], [5], and [6]rotanes as well as precursors for those of [7] and [8]-rotanes have been recorded in a full paper 34. In another synthetic study of rotane synthesis employing ring enlargement of certain ketonic intermediates, led perhaps by design, perhaps with the intervention of serendipity, to compounds such as 88 35. ... [Pg.18]

An interesting iridium-catalysed 5-CH boronation of 2,3-dimethylpyrazine was reported incidentally in a paper mainly devoted to the reaction of pyridines. The product 89 was used in a Suzuki coupling <06AG(I)489>. Selective mono coupling of 2,6-dichloropyrazine with boronic acids, followed by amine displacement of the second chlorine has been used to prepare potential anti-cancer compounds <06JMC407>. A full paper has been published on the chelation-driven selective Suzuki coupling of the pyridinium ylides 90 <06TL6457>. [Pg.408]

Unfortunately, this excellent work was not continued and after short communication16 no full paper with the evidence of reaction scheme was appeared. [Pg.38]

Summary published in the Preprints of the First European Discussion Meeting on Polymer Science New Developments in Ionic Polymerization, Strasbourg, 27.2-2.3.1978 - Full paper unpublished. [Pg.208]


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