Puyang Blue Star was a key investment promotion project implemented in Puyang in 2016.

Puyang Blue Star was a key investment promotion project implemented in Puyang in 2016. Our butadiene devices use BASF's technology which are world-class in terms of security, environment-friendliness and energy conservation, etc. In 2020, we pursued high-quality development, strove for development with confidence and extended our industry chain dependent upon butadiene - our main product according to requirements of the municipal committee and government. We invested in constructing latex project with a capacity of 100,000t/year, and this project was put into production in October 2021. These devices are domestically advanced and their production processes are leading in the industry. They have developed more than 10 series of Carboxyl butyronitrile latex and Carboxylic styrene butadiene latex . They are widely applied in industries of disposable medical gloves, papermaking, architectural coatings, carpets, tyres, non-woven fabrics, leather and cement etc. Puyang Blue Star New Material Co., Ltd. will continue focusing on leading industries, extending the industry chain, improving the value chain, constructing a complete industrial ecosphere, deeply implementing new development concepts and truly promoting high-quality development of enterprises. We will make every effort to build a modernized enterprise in terms of security, environment-friendliness and management. https://pylanxing.lookchem.com/

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726-18-1 Electrophilic alkylations in neutral aqueous or alcoholic solutions

Acid-free Friedel-Crafts chemistry: A paradox? Nucleophilicity scales, based on reactions with benzhydrylium ions, show that many π systems are more nucleophilic than aqueous or alcoholic solutions that are generally employed as solvents for S N 1 reactions. Solvolytically generated carbocations can, therefore, be trapped by donor-substituted arenes and alkenes to form products of Friedel-Crafts-type reactions in neutral aqueous solutions (see scheme). https://www.lookchem.com/CASDataBase_726-18-1.htm
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1023-17-2 Syntheses, structures, and catalytic activity in Friedel–Crafts acylations of substituted tetramethylcyclopentadienyl molybdenum carbonyl complexes

Reactions of the substituted tetramethylcyclopentadienes [C 5 HMe 4 R] [R?=? t Bu, Ph, CH 2 CH 2 C(CH 3 ) 3 ] with Mo(CO) 3 (CH 3 CN) 3 in refluxing xylene gave a series of dinuclear molybdenum carbonyl complexes [(η 5 -C 5 Me 4 R)Mo(CO) 3 ] 2 [R?=? t Bu (1), Ph (2), CH 2 CH 2 C(CH 3 ) 3 (3)], [(η 5 -C 5 Me t Bu)Mo(μ-CO) 2 ] 2 (4)], and [(η 5 -C 5 Me 4 ) t Bu] 2 Mo 2 O 4 (μ-O) (5)], respectively. Complexes 1–5 were characterized by elemental analysis, IR, 1 H NMR, and 13 C NMR spectroscopy. In addition, their crystal structures were determined by X-ray crystal diffraction analysis. The catalytic activities of complexes 1–3 in Friedel–Crafts acylation in the presence of o-chloranil has also been investigated; the reactions were achieved under mild conditions to give the corresponding products in moderate yields. https://www.lookchem.com/CASDataBase_1023-17-2.htm
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75-26-3 Thallium(I) Carboxylate Modification of the Hunsdiecker Reaction

Treatment of a thallium(I) carboxylate with 1 molar equivalent of bromine gives the corresponding thallium(III) carboxylate dibromide.High yields of primary alkyl bromides are obtained if the thallium(III) carboxylate dibromide is treated with 0.5 mol equiv. of bromine in refluxing carbon tetrachloride.Pyrolysis of the thallium(III) derivative in the absence of added bromine gives a low yield of the corresponding alkyl bromide.The use of thallium(I) carboxylates for the preparation of alkyl bromides in high yields is limited to the salts of primary carboxylic acids.A simple procedure for the preparation of alkyl bromides from carboxylic acids using thallium(I) carbonate has been developed. https://www.lookchem.com/CASDataBase_75-26-3.htm
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