Molecules 1999, 4(4), 81-93; doi:10.3390/40400081
Article

Benzothiazole Derivatives. 48. Synthesis of 3-Alkoxycarbonylmethyl-6-bromo-2-benzothiazolones and 3-Alkoxycarbonylmethyl-6-nitro-2-benzothiazolones as Potential Plant Growth Regulators

1,* email, 1 and 2
Received: 17 March 1998; Accepted: 8 March 1999 / Published: 26 March 1999
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: 3-Alkoxycarbonylmethyl-6-bromo- and 3-alkoxycarbonylmethyl-6-nitro-2-benzothiazolones were synthesized by reaction of alkylesters of halogenoacetic acids with 6-bromo-2-benzothiazolones and 6-nitro-2-benzothiazolones respectively. The compounds were tested for plant growth stimulating activity on wheat (Triticum aestivum). The bromo derivatives manifested 25.4 % average stimulating activity in comparison with the control. The stimulation activity of the nitro derivatives was not significant. Optimal structures of the compounds were obtained by a MMPI method, atomic charges and dipole moments were calculated by a semiempirical AM1 method. On the basis of molecular electrostatic potential it has been found that the biological activity of synthesized compounds depends on charge distribution in the molecules.
Keywords: 3-Alkoxycarbonylmethyl-6-bromo-2-benzothiazolones; 3-alkoxycarbonylmethyl- 6-nitro-2-benzothiazolones; plant growth regulators; AM1 calculations; lipophilicity
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MDPI and ACS Style

Loos, D.; Sidoova, E.; Sutoris, V. Benzothiazole Derivatives. 48. Synthesis of 3-Alkoxycarbonylmethyl-6-bromo-2-benzothiazolones and 3-Alkoxycarbonylmethyl-6-nitro-2-benzothiazolones as Potential Plant Growth Regulators. Molecules 1999, 4, 81-93.

AMA Style

Loos D, Sidoova E, Sutoris V. Benzothiazole Derivatives. 48. Synthesis of 3-Alkoxycarbonylmethyl-6-bromo-2-benzothiazolones and 3-Alkoxycarbonylmethyl-6-nitro-2-benzothiazolones as Potential Plant Growth Regulators. Molecules. 1999; 4(4):81-93.

Chicago/Turabian Style

Loos, Dusan; Sidoova, Eva; Sutoris, Viktor. 1999. "Benzothiazole Derivatives. 48. Synthesis of 3-Alkoxycarbonylmethyl-6-bromo-2-benzothiazolones and 3-Alkoxycarbonylmethyl-6-nitro-2-benzothiazolones as Potential Plant Growth Regulators." Molecules 4, no. 4: 81-93.

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