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Search Results (17)

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Authors = Teck-Ming Koh

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3 pages, 149 KiB  
Short Note
3-Hydroxy-4-{[(4-methoxyphenyl)imino]methyl}phenyl Octadecanoate
by Sie-Tiong Ha, Jun-Kit Beh, Kok-Leei Foo, Teck-Ming Koh and Siew-Teng Ong
Molbank 2010, 2010(2), M686; https://doi.org/10.3390/M686 - 8 Jun 2010
Viewed by 5853
Abstract
A new Schiff base ester, 3-hydroxy-4-{[(4-methoxyphenyl)imino]methyl}phenyl octadecanoate, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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3 pages, 290 KiB  
Short Note
3-Hydroxy-4-{[(4-bromophenyl)imino]methyl}phenyl Octadecanoate
by Sie-Tiong Ha, Mei-Yoke Ng, Teck-Ming Koh and Teck-Leong Lee
Molbank 2010, 2010(2), M675; https://doi.org/10.3390/M675 - 9 Apr 2010
Viewed by 6489
Abstract
A new Schiff base ester, 3-hydroxy-4-{[(4-bromophenyl)imino]methyl}phenyl octadecanoate, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
3 pages, 319 KiB  
Short Note
3-Hydroxy-4-{[(4-chlorophenyl)imino]methyl}phenyl Octadecanoate
by Sie-Tiong Ha, Mei-Yoke Ng, Teck-Ming Koh and Teck-Leong Lee
Molbank 2010, 2010(2), M674; https://doi.org/10.3390/M674 - 9 Apr 2010
Viewed by 5908
Abstract
A new Schiff base ester, 3-hydroxy-4-{[(4-chlorophenyl)imino]methyl}phenyl octadecanoate, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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3 pages, 243 KiB  
Short Note
3-Hydroxy-4-{[(4-fluorophenyl)imino]methyl}phenyl Octadecanoate
by Sie-Tiong Ha, Mei-Yoke Ng, Teck-Ming Koh and Teck-Leong Lee
Molbank 2010, 2010(2), M673; https://doi.org/10.3390/M673 - 9 Apr 2010
Viewed by 6086
Abstract
A new Schiff base ester, 3-hydroxy-4-{[(4-fluorophenyl)imino]methyl}phenyl octadecanoate, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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3 pages, 24 KiB  
Short Note
2-[4-(Hexadecyloxy)-3-methoxyphenyl]-1,3-benzothiazole
by Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong and Yip-Foo Win
Molbank 2009, 2009(4), M634; https://doi.org/10.3390/M634 - 16 Oct 2009
Cited by 2 | Viewed by 7615
Abstract
A new heterocycle, 2-[4-(hexadecyloxy)-3-methoxyphenyl]-1,3-benzothiazole, was prepared and its IR, 1H NMR, 13C NMR, elemental analysis and MS spectroscopic data are reported. Full article
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3 pages, 124 KiB  
Short Note
4-[(1,3-Benzothiazol-2-ylimino)methyl]phenyl Dodecanoate
by Sie-Tiong Ha, Teck-Ming Koh, Yip-Foo Win and Siew-Teng Ong
Molbank 2009, 2009(4), M633; https://doi.org/10.3390/M633 - 14 Oct 2009
Viewed by 7390
Abstract
A heterocycle, 4-[(1,3-benzothiazol-2-ylimino)methyl]phenyl dodecanoate, was synthesized and its IR, 1H NMR, 13C NMR, elemental analysis and MS spectroscopic data are presented. This new compound exhibited smectic A phase. Full article
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3 pages, 30 KiB  
Short Note
2-(4-Pentyloxyphenyl)benzothiazole
by Sie Tiong Ha, Teck Ming Koh, Siew Teng Ong, Teck Leong Lee and Yasodha Sivasothy
Molbank 2009, 2009(3), M611; https://doi.org/10.3390/M611 - 4 Aug 2009
Cited by 2 | Viewed by 6278
Abstract
2-(4-Pentyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR and MS spectroscopic data are presented. Full article
3 pages, 87 KiB  
Short Note
2-(4-Heptyloxyphenyl)benzothiazole
by Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Teck-Leong Lee and Yasodha Sivasothy
Molbank 2009, 2009(3), M610; https://doi.org/10.3390/M610 - 30 Jul 2009
Viewed by 6228
Abstract
2-(4-Heptyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR and MS spectroscopic data are presented. Full article
3 pages, 87 KiB  
Short Note
Synthesis of 2-(4-Propyloxyphenyl)benzothiazole
by Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Teck-Leong Lee and Yasodha Sivasothy
Molbank 2009, 2009(3), M609; https://doi.org/10.3390/M609 - 30 Jul 2009
Cited by 5 | Viewed by 6779
Abstract
A new 2-(4-propyloxyphenyl)benzothiazole was synthesized and its IR, 1H and 13C NMR and MS spectroscopic data are presented. Full article
3 pages, 51 KiB  
Short Note
Synthesis of a New Liquid Crystal, 3-Hydroxy-4-{[(6-methoxy-1,3-benzothiazol-2-yl)imino]methyl}phenyl Palmitate
by Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong, Jun-Kit Beh and Lay-Khoon Ong
Molbank 2009, 2009(3), M608; https://doi.org/10.3390/M608 - 30 Jul 2009
Cited by 4 | Viewed by 7191
Abstract
A new Schiff base ester comprising of heterocyclic moiety, 3-hydroxy-4-{[(6-methoxy-1,3-benzothiazol-2-yl)imino]methyl}phenyl palmitate was synthesized and its IR, 1H NMR, 13C NMR, elemental analysis and MS spectroscopic data are presented. Full article
3 pages, 29 KiB  
Short Note
Synthesis of a New Heterocycle with Liquid Crystal Properties: 2-(3-Methoxy-4-hexadecanoyloxyphenyl)benzothiazole
by Sie-Tiong Ha, Teck-Ming Koh, Siew-Teng Ong and Lay-Khoon Ong
Molbank 2009, 2009(3), M606; https://doi.org/10.3390/M606 - 21 Jul 2009
Cited by 3 | Viewed by 6384
Abstract
A new heterocycle 2-(3-methoxy-4-hexadecanoyloxyphenyl)benzothiazole was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
3 pages, 28 KiB  
Short Note
Synthesis of 4-[(4-dimethylaminobenzylidene)amino]phenyl tetradecanoate
by Sie-Tiong Ha, Siew-Teng Ong, Lay-Khoon Ong, Yip-Foo Win, Teck-Ming Koh and Yasodha Sivasothy
Molbank 2009, 2009(2), M601; https://doi.org/10.3390/M601 - 5 Jun 2009
Cited by 1 | Viewed by 6823
Abstract
A new Schiff base ester, 4-[(4-dimethylaminobenzylidene)amino]phenyl tetradecanoate, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are reported. Full article
3 pages, 28 KiB  
Short Note
Synthesis of New Schiff Base Ether: p-n-(Dimethylamino)-benzylidene-p-dodecyloxyaniline
by Sie-Tiong Ha, Lay-Khoon Ong, Joanna Pik-Wan Wong, Yip-Foo Win and Teck-Ming Koh
Molbank 2009, 2009(1), M598; https://doi.org/10.3390/M598 - 24 Mar 2009
Cited by 5 | Viewed by 6161
Abstract
A new Schiff base ether, p-n-(dimethylamino)benzylidene-p-dodecyloxyaniline, was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are reported. Full article
3 pages, 236 KiB  
Short Note
4-[(Pyridin-3-ylmethylene)amino]phenyloctadecanoate
by Sie-Tiong Ha, Lay-Khoon Ong, Yip-Foo Win, Teck-Ming Koh and Guan-Yeow Yeap
Molbank 2009, 2009(1), M591; https://doi.org/10.3390/M591 - 23 Feb 2009
Cited by 6 | Viewed by 5591
Abstract
A new Schiff base 4-[(pyridin-3-ylmethylene)amino]phenyloctadecanoate was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
3 pages, 159 KiB  
Short Note
4-[(Pyridin-3-ylmethylene)amino]phenyltetradecanoate
by Sie-Tiong Ha, Lay-Khoon Ong, Yip-Foo Win, Teck-Ming Koh and Guan-Yeow Yeap
Molbank 2009, 2009(1), M585; https://doi.org/10.3390/M585 - 15 Jan 2009
Cited by 11 | Viewed by 5862
Abstract
A new Schiff base 4-[(pyridin-3-ylmethylene)amino]phenyltetradecanoate was synthesized and its IR, 1H NMR, 13C NMR and MS spectroscopic data are presented. Full article
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