24767-75-7

Basic information

• Product Name: toluene-4-sulfonic acid hepta-3,4-dienyl ester
• Synonyms: toluene-4-sulfonic acid hepta-3,4-dienyl ester
• CAS NO: 24767-75-7
• Molecular Weight: 266.361
• Mol File: 24767-75-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: toluene-4-sulfonic acid hepta-3,4-dienyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: toluene-4-sulfonic acid hepta-3,4-dienyl ester(24767-75-7)
• EPA Substance Registry System: toluene-4-sulfonic acid hepta-3,4-dienyl ester(24767-75-7)

Safety Data

• Hazardous Substances Data: 24767-75-7(Hazardous Substances Data)

Upstream product

• 58534-80-8 NaCC(n-C₃H₇) 
• 98-59-9 p-toluenesulfonyl chloride 
• 5567-51-1 3,4-heptadien-1-ol 

Downstream Products

• 617713-95-8 (Z)-2-but-1-enyl-pyrrolidine 
• 1604-01-9 6-propyl-2,3,4,5-tetrahydropyridine 
• 6705-46-0 1-cyclopropyl-1-butanone 
• 2196-23-8 1,3,5-heptatriene 

Relevant articles and documents

Use of group 4 Bis(sulfonamido) complexes in the intramolecular hydroamination of alkynes and allenes

Titanium tetrakis(amido) complexes catalyze the intramolecular hydroamination of alkynes and allenes more efficiently than Cp-based species. We report here that electron-withdrawing and sterically demanding bis(sulfonamido) ligands lead to enhanced catalytic activity. Zirconium analogues have also been prepared, and the tosyl-substituted complex 20 has been structurally characterized. As in the titanium series, bis(sulfonamido) zirconium catalysts are more efficient in the intramolecular hydroamination of allenes than bis(cyclopentadienyl) complex Cp2ZrMe2 (23). Furthermore, these compounds transform 1,3-disubstituted aminoallenes with high stereoselectivity to the Z-allylamines and allow the hydroamination of a trisubstituted allene. Titanium bis(sulfonamido) imido complex 27 was synthesized. It converts aminoallene 10 to cylic imine 11 with a rate comparable to that of tetrakis(amide) 15, supporting the hypothesis of a catalytically active titanium imido intermediate.