ChemInform Abstract: Montmorillonite K10 Clay Catalyzed Baeyer Condensation of Heterocyclic Aldehydes with N,N-Dimethylaniline: Synthesis and Photoirradiation Studies of Heteroaryldiarylmethanes.

1258-1263The montmorillonitemK10 clay catalysed Baeyer condensation of a number of aromatic heterocyclic aldehydes (1-7) with N,N-dimethylaniline affords novel triarylmethanes (8-14) in good yield. The triarylmethane 8 was irradiated at 325 nm for 1 hr under different solvent systems and the photoproducts were identified as 15 and 16

The Huisgen 1,4-dipolar cycloaddition involving isoquinoline, dimethyl butynedioate and activated styrenes: a facile synthesis of tetrahydrobenzoquinolizine derivatives

A three-component reaction involving isoquinoline, dimethyl butynedioate and electrophilic styrenes is described. The reaction proceeds through a Huisgen 1,4-dipolar cycloaddition pathway

The three-component reaction of dicarbomethoxycarbene, aldehydes, and β-nitrostyrenes: a stereoselective synthesis of substituted tetrahydrofurans

The Rh(II)-catalyzed reaction of dimethyl diazomalonate with aryl aldehydes and β-nitrostyrenes results in the formation of highly substituted tetrahydrofurans. The reaction may be considered to involve the Huisgen dipolar cycloaddition of the carbonyl ylide, generated from the dicarbomethoxycarbene and the aldehyde, to the β-nitrostyrene. The diastereoselectivity of the reaction may be attributed to the concerted nature of the carbonyl ylide cycloaddition

Hybrid macrocyclic receptors based on lower rim functionalised thiacalix[4]arene and amino acids: Synthesis, structure and binding properties towards metal ions

704-714Peptidothiacalixarene derivatives 4a-d and 7a-d have been synthesized in excellent yields by the reaction of methyl esters of glycine, l-alanine and d- and l-phenyl alanine with lower rim substituted 1,3-diacid chloride and tetraacid chloride derivatives of thiacalixarene. The conformational and hydrogen bonding properties of these conjugates have been investigated by means of 1H NMR in the solution state and by X-ray crystallography in the solid state. Complexation studies performed by UV-Vis and 1H NMR spectroscopy in acetonitrile solution show that the 1,3-disubstituted hybrids selectively bind Hg2+ ions and the orientation of the substituent on the chiral carbon is found to have a significant effect on the binding

<span style="font-size:12.0pt;font-family: "Times New Roman","serif";mso-fareast-font-family:"Times New Roman";mso-ansi-language: EN-GB;mso-fareast-language:EN-US;mso-bidi-language:AR-SA" lang="EN-GB">Molecular and crystal structure of 8-acetoxy goniofufurone from <i>Goniothalamus wyanaadensis,</i> Bedd.</span>

1786-1793Lactones, sterol, acetogenin and alkaloid are isolated for the first time from Goniothalamus wyanaadensis, Annonaceae. Structures are elucidated by spectral studies. Single crystal X-ray diffraction data of 8-acetoxy goniofufurone is reported. </span

A facile generation of quinolone quinone methide and its [4+2] cycloaddition to pentafulvenes: Synthesis of novel pyranoquinolinone derivatives^†

1108-1113A mild and efficient protocol for the generation of quinolone quinone methide and its Diels-Alder reactions with pentafulvenes leading to novel pyranoquinolinone derivatives in very good yields are reported in this paper

Diisopropylaminoisocyanide and DMAD in multiple component reactions (MCRs): novel synthesis of substituted 1-amino-3-pyrrolin-2-ones by reaction with aldehydes and dicarbonyl compounds

The zwitterion generated from diisopropylaminoisocyanide and dimethyl acetylenedicarboxylate (DMAD) reacts with a variety of carbonyl and dicarbonyl compounds affording substituted 1-aminopyrrolin-2-ones