84713-49-5

Upstream product

• 84713-51-9 O-ethyl (2-hydroxy-5-nitrophenyl) methyl-phenyl-phosphinate 
• 116432-33-8 (+)-(2R,3S)-3,4-dimethyl-2,5-diphenyl-nitrobenzo<4,3-g>1,6-dioxa-4-aza-5-phospha (5-PV) spiro <4.4>nonane 
• 772-33-8 Koshlands reagent I 
• 1638-86-4 diethyl phenylphosphonite 
• 87214-07-1 (4S,5R)-3,4-Dimethyl-2,5-diphenyl-[1,3,2]oxazaphospholidine 

Relevant academic research and scientific papers

CHIRAL BICYCLIC SPIROPHOSPHORANES IN AN ARBUZOV-TYPE REACTION

The reaction of 2-hydroxy-5-nitro-benzyl halides with three chiral five-or six-membered oxaphosphacycloalkanes has been studied.In each case, a 31P NMR analysis shows the formation of resonance signals in the phosphorane region but these phosphoranes are usually unstable.However both enantiomers of the 2-phenyl-1,3,2-oxazaphospholidine give chiral bicyclic spirophosphoranes which have been characterized by 31P and 1H NMR and high resolution mass spectroscopies.

Aminolysis of Activated Esters Formed by Reaction of Carboxylate Salts with Strained Phosphonates and Phosphinates

Nucleophilic attack of a carboxylate salt on a five membered phosphonic or phosphinic ester followed by an intramolecular acyl transfer reaction gives a substituted aryl ester.Due to the intramolecular base catalysis of a neighbouring P=O group the bimolecular aminolysis of this ester is a fast process.