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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using Lewis acids and reaction promoters. Cytec Technology, James A Jubinsky, Fran Wasserman, Claire M Schultz, November 26, 2002: US06486316 (4 worldwide citation)

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making 2-(2-hydroxy-4-alkoxyphenyl)-4,6-bisaryl-1,3,5-triazines. Cytec Technology, Pennie & Edmonds, October 2, 2001: US06297378 (2 worldwide citation)

The invention relates to a novel process for making 2-(2-hydroxy-4-alkoxyphenyl)-4,6-bisaryl-1,3,5-triazine and 2-(2,4-dialkoxyphenyl)-4,6-bisaryl-1,3,5-triazine compounds directly from 2-chloro-4,6-bisaryl-1,3,5-triazine compounds with 3-alkoxyphenol, 1,3-dialkoxylbenzene compounds or mixtures ther ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using lewis acids and reaction promoters. Cytec Technology, Fran Wasserman, Claire M Schultz, May 31, 2005: US06900314 (1 worldwide citation)

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using lewis acids and reaction promoters. Cytec Technology, James A Jubinsky, Claire M Schultz, Fran Wasserman, May 4, 2004: US06730785

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using Lewis acids and reaction promoters. Cytec Technology, James A Jubinsky, Fran Wasserman, Claire M Schultz, March 23, 2004: US06710177

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making 2-hydroxy-4-alkoxyphenyl or 2,4-dihydroxyphenyl substituted 1,3,5-triazine UV absorbers. Ciba Specialty Chemicals Corporation, Tyler A Stevenson, November 26, 2002: US06486317

The invention provides new processes for preparing compositions containing at least one triazine compound, including new compounds for use in these processes to form the compositions and the new compositions that are formed.


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making trisaryl triazine UV absorbers using Lewis acids and reaction promoters. Cytec Technology, Elizabeth A Galletta, Fran S Wasserman, February 3, 2009: US07485723

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using lewis acids and reaction promoters. CYTEC Technologies, Pennie & Edmonds, September 6, 2001: US20010020094-A1

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...


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Ram B Gupta, Dennis J Jakiela, Sampath Venimadhavan, Russell C Cappadona, Venkatrao K Pai: Process for making triazine UV absorbers using lewis acids and reaction promoters. Cytec, Patent Law Department, October 14, 2004: US20040204585-A1

It has been now surprisingly discovered after extensive research that 2-halo-4,6-bisaryl-1,3,5-triazine can be prepared with unprecedented selectivity, efficiency, mild conditions, and in high yield by the reaction of cyanuric halide with aromatics in the presence of at least one Lewis acid and at l ...