129144-65-6

Upstream product

• 129975-65-1 ((2E,4E)-5-[1,3]Dioxolan-2-yl-penta-2,4-dienyl)-phosphonic acid diethyl ester 
• 98-86-2 acetophenone 
• 129975-71-9 2-((1E,3E)-5-Bromo-penta-1,3-dienyl)-[1,3]dioxolane 
• 114434-56-9 1,(trimethylsilyloxy)hexa-1,3,5-triene 
• 255387-05-4 6,6-diethoxy-1-bromohexa-3,5-diene 
• 129144-61-2 C₁₀H₁₇LiO₂ 
• 129144-76-9 (1E,3E,5Z)-1-Bromo-6-ethoxy-hexa-1,3,5-triene 
• 289-65-6 4H-pyran 
• 129144-74-7 6-bromo-1,1-diethoxyhexa-3E,5Z-diene 
• 82670-30-2 E-5,5-diethoxy-2-pentenal 
• 129144-62-3 C₈H₁₁LiO 
• 129144-71-4 7-phenyl-7-hydroxy-1,1-diethoxyocta-3E,5E-diene 

Relevant academic research and scientific papers

Reactivity of polyvinylogation: Easy and rapid access to different polyenals

This work describes the synthesis and the reactivity of three reagents of polyvinylogation 1-3. By condensation with several aldehydes and ketones, these reagents allow the introduction of three or four doubles bonds, leading to polyenals 5-6 in one or tw

The use of pyrylium tetrafluoroborate for the stereoselective synthesis of 2Z,4E-dienals

The addition of organolithium reagents to pyrylium tetrafluoroborate followed by in situ electrocyclic ring opening of the intermediate 2H-pyrans givens the title Z,E-dienals with high stereoselectivity.

Polyunsaturated aldehydes by direct polyvinylogation of carbonyl compounds using functionalized phosphonates.

Carbonyl compounds are converted into polyethylenic aldehydes in a one pot reaction with the anions of phosphonates 1. followed by a mild acidic hydrolysis.

FUNCTIONALIZED VINYLIC ORGANOLITHIUM COMPOUNDS, SYNTHETIC EQUIVALENT OF ω-LITHIO SORBALDEHYDE.

Functional vinylic anions 2 and 3 react with aldehydes and ketones leading after hydrolysis to polyenic aldehydes 7.They have been used for the synthesis of navenone B 8.