67407-13-0

Upstream product

• 110-62-3 pentanal 
• 1576-35-8 toluene-4-sulfonic acid hydrazide 

Downstream Products

• 110-62-3 pentanal 
• 126118-89-6 2-(n-butyl)-5-phenyl-1,3,4-thiadiazole 
• 110-59-8 pentanonitrile 
• 30057-92-2 N-(p-toluenesulfonyl)aminoacetophenone 
• 18937-82-1 undeca-5,6-diene 

Relevant academic research and scientific papers

Rhodium(III)-Catalyzed Directed C-H Dienylation of Anilides with Allenes Leads to Highly Conjugated Systems

Allenes are unique coupling partners in transition-metal-catalyzed C-H functionalization leading to a variety of products via alkenylation, allenylation, allylation, and annulation reactions. The outcome is governed by both the reactivity of the allene and the formation and stability of the organometallic intermediate. An efficient Rh(III)-catalyzed, weakly coordinating group-directed dienylation of electronically unbiased allenes is developed using an N-acyl amino acid as a ligand. Further elaboration of the dienylated products to construct polycyclic compounds is also described.

I2-TBHP-catalyzed one-pot highly efficient synthesis of 4,3-fused 1,2,4-triazoles from: N -tosylhydrazones and aromatic N-heterocycles via intermolecular formal 1,3-dipolar cycloaddition

I2-TBHP-catalyzed azomethine imine generation and subsequent regioselective 1,3-dipolar cycloaddition (DC) with aromatic N-heterocycles was developed to afford various 4,3-fused 1,2,4-triazoles in excellent yields. The method is operationally simple and highly efficient with broad functional group tolerance.

Multicomponent Coupling Reactions of Two N-Tosyl Hydrazones and Elemental Sulfur: Selective Denitrogenation Pathway toward Unsymmetric 2,5-Disubstituted 1,3,4-Thiadiazoles

A copper-mediated, three-component reaction between two different N-Ts hydrazones and elemental sulfur was developed, leading to a series of unsymmetric 2,5-disubstituted 1,3,4-thiadiazoles in moderate yields with good functional group compatibility. This

Base-catalyzed N -N bond cleavage of hydrazones: Synthesis of α-amino ketones

An efficient Cs2CO3-promoted synthesis of α-amino ketones using hydrazines, aldehydes, and α-haloketones as starting materials through a cascade condensation/nucleophilic substitution/N -N bond cleavage route is developed. The carbonyl group plays a key role in this novel N -N bond cleavage process. Breaking good: A novel method of base-catalyzed N -N bond cleavage of hydrazones has been discovered. A variety of α-amino ketones was synthesized using hydrazines, α-haloketones, and benzaldehyde as starting materials through a cascade condensation/ nucleophilic substitution/N -N bond cleavage sequence.

Palladium-catalyzed formal hydroacylation of allenes employing acid chlorides and hydrosilanes

The palladium-catalyzed formal hydroacylation of allenes employing acid chlorides and hydrosilanes has been achieved. The reactions proceed with commercially available Pd(OAc)2 as a catalyst and HSi(iPr) 3 as a reducing reagent, giving the corresponding α,β-unsaturated ketones regio- and stereoselectively.

5-Alkenyl-1,2,3-thiadiazoles

A method of preparation for the title compounds 5, by bromination-dehydrobromination of the corresponding 5-alkyl-1,2,3-thiadiazoles 3, their spectroscopical characterization, and the reaction of 5 with 4-phenyl-4H-1,2,4-triazole-3,5-dione (6) with format