SYMMETRIC AND ASYMMETRIC DIISOPROPOXYPHOSPHORYL GUANIDINES
作者:Whei Oh Lin、Marcos Costa De Souza、Lillian De Amorim、Helmut G. Alt
DOI:10.1080/10426500008046611
日期:2000.8.1
Phosphorylation of guanidines and alkanediyldiguanidines by a two-phase reaction gave asymmetric (I) and symmetric (III) organophosphorus compounds containing 1-phosphoryl-3-imino group. Structural analyses carried out by IR and NMR coupling/decoupling spectroscopy. Temperature dependence studies showed the presence of intramoleuclar hydrogen bonding of the developed system, the influence of steric effect on the tautomerism of the system was also investigated.
Lin, Whei Oh; Guimaraes, Carlos N.; Souza, Marcos C. De, Phosphorus, Sulfur and Silicon and the Related Elements, 1994, vol. 92, # 1-4, p. 1 - 10
作者:Lin, Whei Oh、Guimaraes, Carlos N.、Souza, Marcos C. De、Costa, Joao B. N. Da、Alt, Helmut G.
DOI:——
日期:——
XI, SHI-KANG;ZHAO, YU-FEN;LIN, WHEI OH;COSTA, DE SOUZA MARCOS, SYNTH. COMMUN., 20,(1990) N1, C. 3295-3301
作者:XI, SHI-KANG、ZHAO, YU-FEN、LIN, WHEI OH、COSTA, DE SOUZA MARCOS
DOI:——
日期:——
Lin Whei Oh, Guimaraes Carlos N., De Souza Marcos C., Da Costa Joao B. N.+, Phosph., Sulfur and Silicon and Relat. Elem, 92 (1994) N 1-4, S 1-9
作者:Lin Whei Oh, Guimaraes Carlos N., De Souza Marcos C., Da Costa Joao B. N.+