✦ LIBER ✦

Reactive E=C [p-p]π Systems, 45[]. 1-Aza-3,4-diphospholenes by [3 + 2] Cycloaddition of 2-(Diisopropylamino)phosphaethyne to Diazo Derivatives R1R2C=N2

✍ Scribed by Grobe, Joseph ;Van, Duc Le ;Immel, Franz ;Krebs, Bernt ;Läge, Mechtild

Book ID: 101816620
Publisher: Wiley (John Wiley & Sons)
Year: 1996
Tongue: English
Weight: 419 KB
Volume: 129
Category: Article
ISSN: 0009-2940
DOI: 10.1002/cber.19961291020

No coin nor oath required. For personal study only.

✦ Synopsis

The reaction of the (diisopropy1amino)phosphaethyne (1) with diazo compounds of the type R1R2C=N2 (2a-2c) unexpectedly leads in high yields (SO-SO%) to the l-aza-3,4-diphospholene derivatives 3a-3c, a new class of heterocycles.

NMR investigations of the analogous reaction of 1 with diazocyclopentadiene 2d show that the multi-step formation of 3a-3c proceeds via the l-aza-3,4-diphospholes 6a-6d as intermediates.

📜 SIMILAR VOLUMES

ChemInform Abstract: Reactive E=C (p-p)π

ChemInform Abstract: Reactive E=C (p-p)π Systems. Part 45. 1-Aza-3,4-diphospholenes by ( 3 + 2) Cycloaddition of 2-(Diisopropylamino)phosphaethyne to Diazo Derivatives R1R2C=N2.

✍ J. GROBE; D. LE VAN; F. IMMEL; B. KREBS; M. LAEGE 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 32 KB

ChemInform Abstract: Reactive E=C(p-p)-π

ChemInform Abstract: Reactive E=C(p-p)-π Systems. Part 43. Synthesis and Characterization of P-Phosphino or P-Arsino Substituted Fluorophosphaalkenes of Type R2E-P=C(F)NEt2 (R: Me, CF3, Me2N; E: P, As).

✍ J. GROBE; D. LE VAN; J. WINNEMOELLER; B. KREBS; M. LAEGE 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 31 KB

Trinuclear nickel clusters, [Ni3(μ3-L)(μ

Trinuclear nickel clusters, [Ni3(μ3-L)(μ3-I)(μ2-dppm)3]n+ (L = I−, CO, CNCH3, CN-2,6-Me2C6H3, CN-i-C3H7, CN-t-C4H9, CN-n-C4H9, NO+) and the “dimer of trimer” hexanuclear nickel clusters {[Ni3(μ3-I)(μ2-dppm)3]2(μ3,μ3′,η1,η1′- CN-R-NC)}2+, (R = −(CH2)6−, p-C6H4): characterization of large clusters by mass spectrometry

✍ David A Morgenstern; Connie C Bonham; Arlene P Rothwell; Karl V Wood; Clifford P 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 654 KB

Reduction in cellularity and expression

Reduction in cellularity and expression of adhesion molecules in rheumatoid synovial tissue after anti-TNFα monoclonal antibody treatment: P.P. Tak1, P.C. Taylor2, F.C. Breedveld3, T.J.M. Smeets3, M.R. Daha4, P.M. Kluin5, A.E. Meinders1, R.N. Maini2. Departments of 1 General Internal Medicine, 3Rheumatology, 4Nephrology, 5Pathology, University Hospital, Leiden, Netherlands; 2 Kennedy Institute of Rheumatology, London, UK

📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 107 KB

Reactivity of Organotin(I) Dimers RSnSnR

Reactivity of Organotin(I) Dimers RSnSnR (R = 2,6-(Me 2 NCH 2 ) 2 C 6 H 3 , 4- t -Bu-2,6-{P(O)(O- i -Pr) 2 } 2 C 6 H 2 ) with Diaryl Dichalcogenides, ArEEAr (E = S, Se, Te; Ar = Ph, 2-C 5 H 4 N): Control of Secondary Sn···Sn Interactions by Intramolecular Coordination and Identity of the Aryl Chalcogenate

✍ Wagner, Michael; Dietz, Christina; Bouška, Marek; Dostál, Libor; Padĕlková, Zdeň 📂 Article 📅 2013 🏛 American Chemical Society 🌐 English ⚖ 554 KB

1H, 13C and 31P NMR studies of some (C6H

1H, 13C and 31P NMR studies of some (C6H5)3−nPRn and (C6H5)3−nPRn Cr(CO)5 (n = 0–3; R  H, CH3, C2H5, i-C3H7, t-C4H9) derivatives

✍ E. Vincent; L. Verdonck; G.P. van der Kelen 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 459 KB