With the volume and accessibility of scientific research increasing across the world, it has never been more important to continue building the reputation for quality and ethical publishing we’ve spent the past two centuries establishing.95-14-7, Name is 1H-Benzo[d][1,2,3]triazole, molecular formula is C6H5N3, belongs to pyrrolines compound, is a common compound. In a patnet, author is Wang, Deqiang, once mentioned the new application about 95-14-7, Quality Control of 1H-Benzo[d][1,2,3]triazole.
(eta(5)-C5Me5)(2)U(=P-2,4,6-(Bu3C6H2)-Bu-t)(OPMe3) Revisited-Its Intrinsic Reactivity toward Small Organic Molecules
The Lewis base stabilized uranium phosphinidene (eta(5)-C5Me5)(2)U(=P-2,4,6-(Bu3C6H2)-Bu-t)(OPMe3) (2), which was derived from (eta(5)-C5Me5)(2)U(Cl)Me (1) and 2,4,6-(Me3C)(3)C6H2 PHK in toluene in the presence of Me 3 PO, was originally reported in 1996, but since then its reactivity toward small organic molecules has not been extensively explored. This contribution closes this gap, and divergent reactivity patterns are established in the reaction of complex 2 toward (small) organic substrates. For example, complex 2 may release the phosphinidene moiety (2,4,6-(Bu3C6H2P)-Bu-t:) and therefore may act as a source of a (eta(5)-C5Me5)(2)U-II fragment in the presence of Ph2S2, Ph2Se2, bipy, ketazine (Ph2C=N)(2), and conjugated alkynes RC CC CR, forming the disulfido compound (eta(5)-C5Me5)(2) U(SPh)(2) (5), diselenido compound (eta(5)-C5Me5)(2) U(SePh)(2) (6), bipy compound (eta(5)-C5Me5)(2) U(bipy) (8), diiminato compound (eta(5)-C5Me5)(2) U(N=CPh2)(2) (9) and the metallacyclopentatrienes (eta(5)-C5Me5)(2) U[te-C-4(R)(2)] (R = Ph (10), Me3Si (11)), respectively. Furthermore, compound 2 may also straightforwardly react with terminal alkynes and a variety of heterounsaturated (organic) molecules such as CS2, isothiocyanates, imines, diazenes, carbodiimides, nitriles, isonitriles, and organic azides. For instance, on treatment with phenylacetylene (PhC CH) the dialkynyl uranium complex (eta(5)-C5Me5)(2) U(C2Ph)(2) (OPMe3) (12) is formed, whereas CS2 and PhNCS furnish the carbodithioates (eta(5)-C5Me5)(2) U[SC(=P-2,4,6-Bu3C6H2)S](OPMe3) (13) and (eta(5)-C5Me5)(2) U[SC(=–NPh)S](OPMe3) (14), respectively. In the reaction of the secondary aldimine PhCH= NPh or the diazene PhN=NPh and 2 the uranium(IV) imido complex (q(5)-O5Me5)(2) U(=NPh)(OPMe3) (15) is isolated, which is in contrast to its reactivity with the primary ketimine 9-(C12H g )C=NH and the carbodiimides (RN=)(2)C, yielding the diiminato uranium(VI) complex (eta(5)-C5Me5)(2) U[N=C(C12H8)](2) (16) and the four-membered uranaheterocycles (eta(5)-C5Me5)(2) U[N(R)C(=P-2,4,6-(Bu3C6H2)-Bu-t)N(R)] (R = C6H11 (17), Pr (18)), respectively. Furthermore, treatment of 2 with nitriles RCN affords the imido uranium(IV) complexes (eta(5)-C5Me5)(2) U[=NC(=P-2,4,6-(Bu3C6H2)-Bu-t)R](OPMe3) (R = C6H11(19), Me3C (20)), whereas isonitriles RNC furnish the metallaaziridines (eta(5)-C5Me5)(2) U[C(=P-2,4,6-(Bu3C6H2)-Bu-t)N(R)1(OPMe3) (R = C6H11 (21), 2,6-Me2Ph (22)). However, in the reaction with organic azides RCN3, complex 2 yields the imido uranium(IV) complexes (eta(5)-C5Me5)(2) U(= NR)(OPMe3) (R = Ph3C (23), p-tolyl (24)) as a result of 3,3-Me-2-5,7-(Bu2C8H5P)-Bu-t (7) formation and N-2 release. The new compounds 12-24 were characterized by various spectroscopic techniques, including single-crystal X-ray diffraction analyses. Furthermore, with complex 2 in hand a comparison between the reactivity of uranium phosphinidenes differing in the steric bulk of its cyclopentadienyl ligands and the effects of a Lewis base (OPMe3) adduct was undertaken.
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Reference:
Pyrroline – Wikipedia,
,1-Pyrroline | C4H7N – PubChem