32675-34-6

Upstream product

• 160060-65-1 N,N'-Bis-(4-fluoro-phenyl)-5H-4b,10,11-triaza-benzo[b]fluorene-10-carboxamidine 
• 160060-66-2 N,N'-Bis-(4-chloro-phenyl)-5H-4b,10,11-triaza-benzo[b]fluorene-10-carboxamidine 
• 160060-64-0 N,N'-Di-p-tolyl-5H-4b,10,11-triaza-benzo[b]fluorene-10-carboxamidine 
• 160060-63-9 N,N'-Diphenyl-5H-4b,10,11-triaza-benzo[b]fluorene-10-carboxamidine 

Relevant academic research and scientific papers

Preparation of -, -, and -Bicyclic Guanidines from C,C'-Bis(iminophosphoranes)

A one-pot synthesis of -, -, and -rigid bicyclic guanidines (6, 8, 19, 21, 23) based on a bis(iminophosphorane)-mediated annulation strategy is reported.The crystal and molecular structure of the parent -bicyclic guanidine 8 has been established by X-ray diffraction.The crystallographically independent molecule forms dimers through a centre of symmetry by N-H***N hydrogen bonds.The molecule, and therefore the dimer, is statistically disordered in a 65/35 ratio.A statistical study of N-H***N hydrogen bonds of this kind of dimers has been carried out by using the Cambridge Structural Database. - Key Words: Bis(iminophosphoranes) / Guanidines, bicyclic / Aza Wittig reaction