nate and trimethylphosphine, affording N-phosphonionitrilimine 5 and phosphorus ylide 6 in 51 and 95% yields, respectively. [Bis(diisopropylamino)thioxophosphoranyl][bis(diisopropylamino)phosphino]diazomethane (8) also reacts with TCBQ leading to 4 (90% yield) via 3. This result is rationalized by the formation of the (thioxophosphoranyl)(phosphoranyl)diazomethane 9, which is in equilibrium with the
Réau, Régis; Reed, Robert W.; Dahan, Françoise, Organometallics, 1993, vol. 12, # 5, p. 1501 - 1502
作者:Réau, Régis、Reed, Robert W.、Dahan, Françoise、Bertrand, Guy
DOI:——
日期:——
Effects of a Strong Electron-Withdrawing N-Boryl Substituent on the Stability of Nitrilimines: Surprising Dimerization Involving the Nitrilimine Heteroatom Substituents with Formation of (Fused) Bicyclic [3.3.0] and [4.3.0] Derivatives
The lithium salts of [bis(diisopropylamino)-phosphino]diazomethane 1a and [bis(diisopropylamino)thioxophosphoranyl]diazomethane 1b react with dicyclohexylchloroborane giving transient N-boryl-nitrilimines 2a and 2b, which dimerize affording (fused) heterobicyclic [3.3.0] and [4.3.0] derivatives 4 and 6, respectively. Base induced hydrolysis of 6 leads to 1,4-dihydro-1,2,4,5-tetrazine 9.
Dubau Nathalie, Arthur Marie-Pierre, Dahan Francoise, Baceiredo Antoine, +, Organometallics, 13 (1994) N 7, S 2913-2916
作者:Dubau Nathalie, Arthur Marie-Pierre, Dahan Francoise, Baceiredo Antoine, +
DOI:——
日期:——
SICARD, GHISLAINE;BACEIREDO, ANTOINE;BERTRAND, GUY, J. AMER. CHEM. SOC., 110,(1988) N 8, 2663-2664
作者:SICARD, GHISLAINE、BACEIREDO, ANTOINE、BERTRAND, GUY