- Synthesis and electronic factors in thermal cyclodimerization of functionalized aromatic trifluorovinyl ethers
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A series of 19 p-substituted aromatic trifluorovinyl ether compounds were prepared from versatile intermediate P-Br-C6H4-O-CF= CF2 and underwent thermal radical mediated cyclodimerization to new difunctional compounds cont
- Spraul, Bryan K.,Suresh,Jin, Jianyong,Smith Jr., Dennis W.
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p. 7055 - 7064
(2007/10/03)
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- Synthesis of novel monomers containing the Trifluorovinylidene-group and the Cyanato-group and polymers thereof
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Novel hybrid monomers contaning both the aryltrifluorovyinyloxyether-group (TFVE-group) and the cyanato-group, their synthesis, and the synthesis of homo- and co-polymers made from these new hybridmonomers are disclosed. The said monomers are preferably of formula (III): wherein R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 can independently be selected from among a broad variety of substituents, R 11 is a single bond or is an alkylene group, R 13 and R 14 are both preferably F, and R 11 , R 15 and R 16 can be either F or H, Y and z are independent from each other and each Y and/or z can independently (in case q and/or n are more than 1) be selected from a chemical bond, SO 2 , CF 2 , CH 2 , CHF, CH(CH 3 ) 2 , isopropylene, hexafluoroisopropylene, n- or iso-C 1 -C 18 alkylene which may be partly or fully fluorinated, 0, NR 19 , N=N, CH=CH, -(C=O)-O-, -O-(C=O)-, CH=N, -C‰?C-, CHN-N=CH, alkyloxyalkylene having 1 to 18 carbon atoms which is optionally partly or fully fluorinated, S, Si(CH 3 ) 2 or wherein R 19 is hydrogen or C 1 -C 18 alkyl, Q has the same meaning as Y, m is 0 or 1, n is 0, or an integer between 1 and 6, o is 0 or an integer between 1 and 12, p is 0 or 1, and q is 0 or an integer between 1 and 6.
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Page/Page column 24-25
(2010/11/24)
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- Synthesis of 4,6-disubstituted pyrimidines via Suzuki and Kumada coupling reaction of 4,6-dichloropyrimidine
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A series of 4,6-disubstituted pyrimidines were synthesized via Suzuki and Kumada coupling reaction of 4,6-dichloropyrimidine.
- Qing, Feng-ling,Wang, Ruowen,Li, Benhan,Zheng, Xing,Meng, Wei-Dong
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