121030-20-4

Basic information

• Product Name: (2E,4E)-1--5-(4'-chlorophenyl)-2,4-pentadiene
• CAS NO: 121030-20-4
• Molecular Weight: 293.793
• Mol File: 121030-20-4.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (2E,4E)-1--5-(4'-chlorophenyl)-2,4-pentadiene(CAS DataBase Reference)
• NIST Chemistry Reference: (2E,4E)-1--5-(4'-chlorophenyl)-2,4-pentadiene(121030-20-4)
• EPA Substance Registry System: (2E,4E)-1--5-(4'-chlorophenyl)-2,4-pentadiene(121030-20-4)

Safety Data

• Hazardous Substances Data: 121030-20-4(Hazardous Substances Data)

Upstream product

• 104-88-1 4-chlorobenzaldehyde 
• 121055-19-4 diethyl <(E)-4--2-buten-1-yl>phosphonate 
• 51779-32-9 iminodicarboxylic acid di-tert-butyl ester 
• 121030-33-9 (E)-1-chloro-4--2-butene 
• 121030-31-7 C₁₄H₂₄ClNO₄ 
• 1083003-48-8 tert-butyl (E)-4-(1-phenyl-1H-tetrazol-5-ylsulfonyl)but-2-enyl carbamate 

Relevant articles and documents

The conversion of carbonyl compounds into pentadienylamines by a Julia-Kocienski olefination procedure

Julia-Kocienski olefination has been successfully employed to convert carbonyl compounds into the corresponding Boc-protected 1,3-pentadienyl amines in a C4N homologation process. Good to excellent yields are achieved in THF using MHMDS as base to deprotonate the precursor 1-phenyl-1H-tetrazol-5- ylsulfone reagent. The nature of the metallic countercation dramatically affects the stereoselectivity of the newly formed alkene: good levels of 2E,4E-stereoselectivity are achieved using KHMDS whereas LiHMDS gives a predominance of the 2E,4Z-dienyl product. Georg Thieme Verlag Stuttgart.