3740-00-9

Upstream product

• 15501-33-4 neopentyl iodide 
• 603-35-0 triphenylphosphine 

Downstream Products

• 51848-97-6 α-Neopentylsulfonyl-aethylidentriphenylphosphoran 
• 51849-07-1 α-Aethylsulfonyl-neopentylidentriphenylphosphoran 
• 51849-09-3 α'-Neopentylsulfonyl-α-benzylsulfonylbenzylidentriphenylphosphoran 
• 3739-96-6 (2,2-Dimethyl-propylidene)-triphenyl-λ⁵-phosphane 
• 3740-04-3 (2,2-dimethylpropyl)diphenylphosphine oxide 
• 3846-66-0 (E)-1-tert-butyl-2-phenylethene 
• 51848-96-5 α-Neopentylsulfonyl-methylidentriphenylphosphoran 
• 51849-00-4 α-Neopentylsulfonyl-neopentylidentriphenylphosphoran 
• 51849-06-0 α-Methylsulfonyl-neopentylidentriphenylphosphoran 
• 3740-03-2 α, β, β-Trimethyl-propyl-triphenylphosphonium 

Relevant academic research and scientific papers

Untersuchungen im Wittig-System nach einem ordnenden Konzept auf der Basis alternativer Prinzipien

Our results show that the stereoselectivity of the Wittig-reaction can be controlled by the variation of substituents in accord with the ORDERING CONCEPT OF ALTERNATIV PRINCIPLES (individual pairs, known and unknown classes of alternatives).The "all-phenyl Wittig-system" having three phenyl groups on phosphorous two in ylid- and aldehyd-position was chosen as a standard for our investigations.Differentiation in ylid-position and compensation on phosphorous and aldehyd-position were observed by the comparison of "patterns".Consequently, most of the selectivity rules of Wittig-reactions can be explained by the differentiation through alternatives in the ylid-position.Inversion or conservation of the "patterns" of measured data points to the variation in structure of starting materials, reaction rates and selectivities.Amount-controls were also described in certain systems.