83521-68-0

Upstream product

• 89-98-5 2-chloro-benzaldehyde 
• 540-63-6 ethane-1,2-dithiol 

Downstream Products

• 90982-75-5 phenyl o-chlorobenzenedithiocarboxylate 
• 1822-73-7 phenylthioethylene 
• 89-98-5 2-chloro-benzaldehyde 

Relevant academic research and scientific papers

Phosphorylated Polyacrylonitrile Fibers as an Efficient and Greener Acetalization Catalyst

A novel solid acid catalyst (PANEAPF) is developed by immobilization of phosphoric acid on polyacrylonitrile fiber through covalent bonding. Various characterization techniques such as elemental analysis (EA), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectroscopy (FTIR), etc. are utilized to confirm the successful grafting and the stability of the fiber catalysts during application. PANEAPF shows high catalytic activity in the acetalization of aldehydes owing to the high utilization efficiency of its functionalized acid sites. In addition, the strong polarity micro-environment in the surface layers of PANEAPF make it highly suitable for catalytic application in both water and alcohol. Furthermore, the fiber catalyst can be applied to the acetalization of aldehydes in a continuous-flow process at room temperature, and shows excellent reactivity and superior recyclability (over 20 times). The many advantages of PANEAPF such as simple preparation, convenient regulation of acid amount, high durability, and eco-friendly process make it very attractive for fixed-bed reactors in the chemical industry.

Sulfonated polyanthracene-catalyzed highly efficient and chemoselective thioacetalization of carbonyl compounds and transthioacetalization of acetals and acylals

A straightforward and highly efficient procedure for the thioacetalization of a variety of aldehydes and transthioacetalization of acylals and acetals in good to excellent yields using catalytic amounts of sulfonated polyanthracene (S-PAT) is reported. Th

Aluminum hydrogen sulfate [Al(HSO4)3] as an efficient catalyst for the preparation of thioacetals

Aluminum hydrogen sulfate, as a heterogeneous solid acid catalyst, has been used for the mild conversion of carbonyl compounds to their thioacetals using 1,2- and 1,3-dithiol under ambient conditions with short reaction times in high to excellent yield in

A mild method for the protection of aldehydes as dithioacetals and dithiolanes catalyzed by I2 generated in situ using Fe(NO 3)3.9H2O/Nai under heterogeneous conditions

Structurally diverse aromatic aldehydes were thioacetalated in a clean and efficient reaction with ethane-1,2-dithiol and thiophenol based on the use of I2 generated in situ from Fe(NO3)3.9H 2O/NaI. The reaction occurs in good to high yield in dichloromethane at room temperature and the use of toxic and corrosive molecular iodine is avoided.

Chemoselective dithioacetalization and oxathioacetalization of carbonyl compounds using alumina sulfuric acid as catalyst

Carbonyl compounds have been successfully converted into their corresponding dithiolane, dithiane, and oxathiolane derivatives using a catalytic amount of alumina sulfuric acid (Al2O3-SO3H) with excellent yields at room temperature in short reaction times under mild conditions. This simple method is a highly chemoselective procedure for protection of aldehydes in the presence of ketones, and the heterogeneous catalyst can be recovered and reused several times without any loss of its activity. Copyright Taylor & Francis Group, LLC.

Application of BU4N+HSO4- as an ionic liquid and acid catalyst for thioacetalization of aldehydes and ketones

A variety of carbonyl containing compounds have been successfully reacted with 1,2-ethanedithiol in a thioacetylization reaction using tetrabutylammonium hydrogensulfate as a mild and efficient catalyst. Aldehydes and ketones react with good to excellent

Chemoselective and solvent-free thioacetalization of aldehydes by a catalytic amount of NBS

A chemoselective, straightforward, and rapid method for thioacetalization of aldehydes by use of 1,2-ethandithiol and a catalytic amount of N-bromosuccinimide under solvent-free conditions is reported. The reaction takes place in excellent yields and shor

2,4,4,6-Tetrabromo-2,5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS) and bromine as efficient catalysts for dithioacetalization and oxathioacetalization of carbonyl compounds and transdithioacetalization reactions

The use of 2,4,4,6-tetrabromo-2,5-cyclohexadienone (TABCO), N-bromosuccinimide (NBS), and bromine as efficient catalysts for conversion of carbonyl compounds to their cyclic and acyclic dithioacetals and 1,3-oxathiolanes under mild reaction conditions are described. These catalysts are also used for efficient transdithioacetalization of acetals, diacetals, ketals, acylals, enamines, hydrazones, and oximes with high yields in the presence of thiols.

Tungsten hexachloride (WCl6) as an efficient catalyst for chemoselective dithioacetalization of carbonyl compounds and transthioacetalization of acetals

A variety of aldehydes, ketones and O,O-acetals were efficiently converted to the corresponding 1,3-dithianes and 1,3-dithiolanes by using catalytic amounts of tungsten hexachloride (WCl6) in CH2Cl2 under mild conditions.

Process for preparing substituted benzotrichlorides

The invention herein pertains to a novel process for making substituted benzotrifluorides.