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BENZOIN (TECH. & PURE)
BENZIL (PURE) A rapid wrap-up of what’s new in Operations,
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Para Amino Phenol with 4-Aminophenol / BENZANILIDE
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Para Aminophenol (PAP) ALPHA BENZOIN OXIME Catalytic Processes
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resistant to permeability of (CUPRON) the presence of Lewis acid catalysts like
air, sunlight & moisture to Contact Manufacturer: SnCl . A sulphur-free cationic RAFT poly-
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Prevent Oxidation of the A.P.C.I. merisation also proceeded for IB with
material Kamal Kunj, 3rd Flr., Shivsena Bhavan Path, exo-olefin AMS dimer. There are addi-
• Specialised Performance Shivaji Park, Dadar (W), Mumbai 400 028. tional products. (Angew. Chem. Intl. Ed.;
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for manufacturing Oncology Mob.: 9869226970 / 9869076970 DOI: 10.1002/anie.202307791).
Drugs, Hair Dye Intermediate, Email: ambika_pharmachem@yahoo.com
Key Pharmaceuticals, etc. Synthesis of benzimidazoles
PRODUCTS AT COMPETITIVE PRICE (BI) with H evolution
2
• DIMETHYLGLYOXIME
• N,N-DIMETHYL-P-TOLUIDINE Y.F. Wang et al have worked on BI,
Product Performance: • BILE SALT which are a versatile class of scaffolds
• 1-BROMONAPHTHALENE with important biological activities.
• CHLORAMINE T
• Purity by HPLC : 99.5% above • PHENOLPHTHALEIN A new radical route is reported via
• SODIUM THIOGLYCOLATE 80% photoredox coupling of alcohols and
• Stability : 6 Months • N-1-NAPHTHYL ETHYLENE diamines along with stoichiometric
DIAMINE DIHYDROCHLORIDE
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CHLORIDE Dehydrogenation of ethanol thus highest catalytic activity and the nanosheets. (Angew. Chem. Intl. Ed.;
• Packaging : Available in 40 kgs bags • SODIUM COBALTINITRITE (E) to acetaldehyde (A) productivity, at 255°C, was 2.79 gm per DOI: 10.1002/anie.202304306).
• 1-NAPHTHYLACETIC ACID
• PHENYL HYDRAZINE gm per hour, outperforming most of the Mechanistic insights into
• PEPTONE This process is still practiced and is more reported Cu-based catalysts. However,
• YEAST EXTRACT attractive than oxidative dehydrogena- it lacks stability and tends to deacti- CeO -catalysed direct synthe-
2
• CYANOACETIC ACID 98% tion, particularly when H is required. vate over time. Dry impregnation gives sis of diethyl carbonate (DEC)
Please reach out to us on: +91-7977496470 / • N-METHYL ANILINE T. Pokarny et al have worked on the good activity and was most stable. (ACS from CO and ethanol assisted
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6, Gandhi Oil Mill Compound, Ind. Area, Gorwa Road,
Vadodara - 390016. • Ph.: 0265-2281013 • M: 9724208555 well-known Cu-based catalyst, but have Sustainable Chem. Eng., 2023; DOI: by zeolite and 2,2-diethoxy-
We also manufacture Ortho Amino Phenol (OAP), Para Nitro Phenol (PNP) and Ortho Nitrophenol (ONP). Email : nathsuvidhi@yahoo.in KNS ADI looked into Cu-SiO from sub-nano- 10.1021/acssuschemeng.2co6777). propane (DEP)
2
sales@sulabfinechem.com
meter cluster to 15-nm large particles.
The activity and long-term stability Cationic beta-scission of C-H T. Chang et al have managed to over-
MANUFACTURERS OF: depend on many factors, e.g., particle size, and C-C bonds for selective come thermodynamic limitation in
ALIQUAT-336 PHENYL TRIMETHYL AMMONIUM CHLORIDE the title DEC. A detailed kinetic study
CETRIMIDE BP STRONG CETRIMIDE SOLUTION BP choice of support, doping, etc. For 2.5 dimerisation and subsequent
CETYL PYRIDINIUM CHLORIDE USP TETRA BROMO BISPHENOL A wt% Cu, varying Cu distribution was sulphur-free RAFT polymeri- was made and DRIFT spectroscopy
CETYL TRIMETHYL AMMONIUM BROMIDE TETRA BUTYL AMMONIUM BROMIDE studied through four different synthetic was adopted. The rate-determining
CETYL TRIMETHYL AMMONIUM CHLORIDE SOLUTION TETRA BUTYL AMMONIUM CHLORIDE pathways. All these were fully charac- sation of alpha-methylstyrene step has been delineated. (Catalysis
CETYL TRIMETHYL AMMONIUM HYDROGEN SULPHATE TETRA BUTYL AMMONIUM HYDROGEN SULPHATE (AMS) and isobutylene (IB) Sci. Technol., 2023; DOI: 10.1039/
DIGLYME & DIETHYLENE GLYCOL DIMETHYL ETHER TETRA BUTYL AMMONIUM HYDROXIDE terised and temperature was varied from
ETHYL TRIPHENYL PHOSPHONIUM ACETATE SOLUTION TETRA BUTYL AMMONIUM IODIDE 185°C to 325°C. These studies revealed T. Tanimoto et al have prepared a series D3CY00661A).
ETHYL TRIPHENYL PHOSPHONIUM BROMIDE TETRA ETHYL AMMONIUM BROMIDE that the sample prepared by hydrolytic
LAURYL PYRIDINIUM CHLORIDE TETRA ETHYL AMMONIUM HYDROXIDE of exo-olefin compounds ((CH ) C(-
3 2
LAURYL TRIMETHYL AMMONIUM CHLORIDE TETRA ETHYL AMMONIUM TETRAFLUOROBORATE sol-gel gives high Cu dispersion and PhY)-CH C(=CH )PhY) by selective
2
2
METHYL TRIBUTYL AMMONIUM CHLORIDE TETRA METHYL AMMONIUM CHLORIDE Available cationic dimerisation of AMS deriva-
METHYL TRIOCTYL AMMONIUM CHLORIDE TETRA METHYL AMMONIUM HYDROXIDE Di Sodium Phosphate (Technical Grade) tives (CH =C(CH )PhY) with p-toluene-
METHYL TRIPHENYL PHOSPHONIUM BROMIDE TETRA PROPYL AMMONIUM HYDROXIDE 2 3
MONOGLYME TRI ETHYL BENZYL AMMONIUM CHLORIDE Tetra Sodium Pyro Phosphate (Food Grade) sulphonic acid (PTSA) via beta-C-H
PHENYL TRIMETHYL AMMONIUM CHLORIDE TRIETHYL METHYL AMMONIUM TETRAFLUOROBORATE Mfg By: Shriram Biochem scission. They were subsequently used
tatva chintan pharma chem ltd. Interested parties may send their inquiries as reversible chain transfer agents for
Plot No. 502/17, GIDC, Dist. Bharuch, Ankleshwar - 393 002, Gujarat, India by Email, WhatsApp or Call sulphur-free cationic RAFT polymeri-
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Chemical Weekly February 27, 2024 167
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