• 1. Steric effects in di- and tri-arylmethanes. Part IX. Electronic absorption spectra of julolidine (2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizine) and kairoline (1-methyl-1,2,3,4-tetrahydroquinoline) analogues of Michler's hydrol blue, malachite green, crystal violet, and Michler's ketone
  C. C. Barker,G. Hallas J. Chem. Soc. B 1969 1068
• 2. Intramolecular charge transfer of a push–pull chromophore with restricted internal rotation of an electron donor
  Sebok Lee,Myungsam Jen,Gisang Lee,Taehyung Jang,Yoonsoo Pang Phys. Chem. Chem. Phys. 2022 24 5794
• 3. Dipole moments of derivatives of 4-phenylazo-NN-diethylaniline and of 9-phenylazojulolidine (9-phenylazo-2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizine)
  Geoffrey Hallas,Naghi Saadatjou,John D. Hepworth,Douglas A. Ibbitson,Alan M. Jones,Terence P. Keane,Andrew R. Turton J. Chem. Soc. Perkin Trans. 2 1981 1292
• 4. Electronic absorption spectra of some julolidine (2,3,6,7-tetrahydro-1H, 5H-benzo[ij]quinolizine) analogues of 4-dimethylaminoazobenzenes
  R. W. Castelino,G. Hallas J. Chem. Soc. B 1971 793
• 5. Proton magnetic resonance spectra of some para-substituted derivatives of 9-phenylazojulolidine (9-phenylazo-2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizine)
  G. Hallas J. Chem. Soc. C 1971 2847

• Solvents and Organic Chemicals Organic Compounds Organoheterocyclic compounds Quinolines and derivatives Hydroquinolines
• Solvents and Organic Chemicals Organic Compounds Amines/Sulfonamides

Julolidine (CAS No. 479-59-4): A Versatile Building Block in Modern Chemical Biology and Medicinal Chemistry

Julolidine, with the chemical name 1,3,5-triaza-7-phosphabicyclo[3.2.0]heptadiene, is a fascinating heterocyclic compound characterized by its unique structural framework and remarkable reactivity. This compound, identified by the CAS number 479-59-4, has garnered significant attention in the fields of chemical biology and medicinal chemistry due to its versatile applications as a synthetic intermediate and a pharmacophore.

The molecular structure of Julolidine consists of a bicyclic system incorporating three nitrogen atoms and one phosphorus atom, arranged in a compact and rigid configuration. This distinctive architecture imparts upon it a high degree of conformational flexibility, making it an invaluable tool for the design and synthesis of complex organic molecules. The presence of nitrogen and phosphorus atoms within the same framework also endows Julolidine with unique electronic properties, which are exploited in various chemical transformations.

In recent years, Julolidine has found extensive utility in the development of novel pharmaceuticals and agrochemicals. Its ability to serve as a scaffold for constructing biologically active molecules has been leveraged in the synthesis of compounds with diverse pharmacological profiles. For instance, derivatives of Julolidine have been investigated for their potential as kinase inhibitors, which are crucial in the treatment of various cancers and inflammatory diseases.

The reactivity of Julolidine is particularly noteworthy, as it can undergo a wide range of chemical reactions, including cycloadditions, nucleophilic substitutions, and metal-catalyzed transformations. These reactions make it an excellent precursor for generating complex molecular architectures with precision. The compound's ability to participate in [4+2] cycloadditions with dienes has been particularly well-studied, leading to the formation of novel heterocyclic compounds that exhibit interesting biological activities.

One of the most compelling aspects of working with Julolidine is its role as a key intermediate in the synthesis of pharmacologically relevant molecules. Researchers have harnessed its structural features to develop inhibitors targeting specific enzymes involved in disease pathways. For example, studies have demonstrated that certain derivatives of Julolidine can modulate the activity of protein kinases by binding to their active sites and inhibiting their catalytic function. This has opened up new avenues for therapeutic intervention in conditions such as cancer, where dysregulation of kinase activity is a common feature.

The synthetic versatility of Julolidine extends beyond pharmaceutical applications to include materials science and catalysis. Its ability to form stable complexes with transition metals has made it useful in the development of novel catalysts for organic transformations. These catalysts can facilitate reactions that would otherwise be challenging or impossible to achieve using traditional methods.

In conclusion, Julolidine, identified by its CAS number 479-59-4, is a cornerstone compound in modern chemical biology and medicinal chemistry. Its unique structural features and reactivity make it an indispensable tool for the synthesis of complex molecules with significant biological activity. As research continues to uncover new applications for this versatile compound, its importance in drug discovery and materials science is likely to grow even further.

• 16768-69-7(1-Ethyl-1,2,3,4-tetrahydroquinoline)
• 5429-95-8(1(2H)-Quinolinedecanamine,3,4-dihydro-N,N-dipentyl-)
• 83646-41-7(1H,5H-Benzo[ij]quinolizine,2,3,6,7-tetrahydro-, hydrobromide (1:1))
• 5429-89-0(1(2H)-Quinolinenonanamine,N-butyl-3,4-dihydro-N-propyl-)
• 6613-29-2(Quinoline, 1,2,3,4-tetrahydro-1-propyl-)
• 593281-16-4(Quinoline, 1-hexyl-1,2,3,4-tetrahydro-)
• 5429-88-9(1(2H)-Quinolinedecanamine,N-butyl-N-ethyl-3,4-dihydro-)
• 303982-14-1(7-Amino-1-ethyl-1,2,3,4-tetrahydroquinoline)
• 2637-31-2(3-(1,2,3,4-tetrahydroquinolin-1-yl)propan-1-amine)
• 6613-30-5(Quinoline, 1-butyl-1,2,3,4-tetrahydro-)