Effect of seaweed liquid fertilizer on the germination and growth of seedling of mangrove - Rhizophora mucronata Boir

Seaweeds are among the important marine living resources with tremendous commercial application. The effect of sea weed liquid fertilizer of Padina boergesenii was studied on the growth parameters of Rhizophora mucronata.  The propagules were soaked in different concentrations (0.5, 1, 1.5 and 2%). Within 24 hours soaking, all the soaked propagules were carefully planted in individual polythene bags each containing 2 kg of soil best response was found after 90 days at 1% concentration of seaweed extract in almost all the growth parameters. The maximum growth was recorded at 1% concentration Viz.,shoot length 24.3 cm, leaf breadth 3.45 cm, leaf length 7.1 cm when compared to control (13.7 cm shoot length, leaf breadth 3.0 cm and leaf length 5.35 cm). It was concluded that differential response was noticed in the mangrove plant to the seaweed extract treatment. In spite of these differential responses, Padina boergesenii was found to be an effective seaweed liquid fertilizer (SLF) in mangrove plant

(E)-3-Phenyl-2-(1-tosyl-1H-indol-3-ylcarbon­yl)acrylonitrile

In the title compound, C25H18N2O3S, the indole moiety is planar and makes a dihedral angle of 89.95 (09)° with the phenyl ring of the sulfonyl substituent. The mol­ecular conformation features a weak C—H⋯N short contact and the crystal packing reveals a weak C—H⋯O hydrogen bond

3-(6-Benz­yloxy-2,2-dimethyl­perhydro­furo[2,3-d][1,3]dioxol-5-yl)-5-(4-bromo­phen­yl)-2-phenyl­perhydro­pyrrolo[3,4-d]isoxazole-4,6-dione

In the title compound, C31H29BrN2O7, the isoxazolidine ring adopts a twist conformation, while the tetrahydrofuran, dioxolone and pyrrole rings adopt envelope conformations. The structure is stabilized by inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions

3-(6-Benz­yloxy-2,2-dimethyl­perhydro­furo[2,3-d][1,3]dioxolan-5-yl)-5-(4-chloro­phen­yl)-4-nitro-2-phenyl-2,3,4,5-tetra­hydro­isoxazole

In the title compound, C29H29ClN2O7, the isoxazole and dioxolane rings adopt envelope conformations, and the furan ring adopts a twisted conformation. The crystal structure is stabilized by inter­molecular C—H⋯π inter­actions between a benz­yloxy methyl­ene H atom and the 4-chloro­phenyl ring of an adjacent mol­ecule, and by weak non-classical inter­molecular C—H⋯O hydrogen bonds. In addition, the crystal structure exhibits a Cl⋯O halogen bond of 3.111 (3) Å, with a nearly linear C—Cl⋯O angle of 160.7 (1)°

3-(1,2-Diphenyl­ethen­yl)-2-phenyl-1H-indole

In the title compound, C28H21N, the planar pyrrole ring makes dihedral angles of 1.5 (2), 42.4 (2), 65.4 (2) and 79.7 (1)°, with the least squares planes of the four phenyl rings. The mol­ecular structure and crystal packing are stabilized by weak inter- and intra­molecular C—H⋯π inter­actions

3-(1,2-Di-p-tolyl­vin­yl)-2-methyl-1H-indole

In the title compound, C25H23N, the indole unit makes a dihedral angles of 79.03 (5) and 61.82 (4)° with the benzene rings. No classical hydrogen bonds are found in the crystal structure

N-[(2-Hydr­oxy-1-naphthyl)(3-nitro­phenyl)meth­yl]acetamide

The title compound, C19H16N2O4, is of inter­est as a precursor to biologically active substituted quinolines and related compounds. The dihedral angle between the naphthalene ring system and the benzene ring is 81.9 (1)°. The crystal structure is stabilized by N—H⋯O inter­molecular hydrogen bonds, linking the mol­ecules into pairs around a center of symmetry. The crystal structure is further stabilized by inter­molecular O—H⋯O hydrogen bonds, which link the mol­ecules into chains running along a axis. An intra­molecular C—H⋯O short contact is also present

A novel one-pot synthesis of 4-chloro-3-quinolinecarboxaldehydes, 4-chloroquinolines and 4-chloro-3-ethylquinolines using Vilsmeier reagent

541-54

1-Benzyl-3-(1,2-diphenyl­ethen­yl)-1H-indole

In the title compound, C29H23N, the planar [maximum deviation from the least squares plane = 0.056 (1) Å] indole ring makes dihedral angles of 83.4 (4), 69.9 (1) and 59.9 (1)°, with the least-squares planes of three benzene rings. The mol­ecular packing is stabilized by weak inter­molecular C—H⋯π inter­actions