The first general and efficient non-noble metal-catalysed reductive C2-alkoxylation of cyclic imides (phthalimides and succinimides) is presented. Crucial for the success is the use of [Co(BF4)2$6H2O/ triphos (L1)] combination and no external additives are required. Using the optimal cobalt-system, the hydrogenation of the aromatic ring of the parent phthalimide is avoided and only one of the c...

The esterification reaction of trimellitic anhydride chloride TMAC 1 with N-(hydroxymethyl) phthalimide NHMP 2, N-(2-hydroxyethyl) phthalimide NHEP 3 or N-(hydroxymethyl) thalidomide NHMT 4 afforded novel cyclic imide-ester derivatives; phthaloyl-phthalic anhydride methyl ester PPAME 5, phthaloyl-phthalic anhydride ethyl ester PPAEE 6 and thalidomide-phthalic anhydride methyl ester TPAME 7, res...

Given a positive integer n, we let sfp(n) denote the squarefree part of n. We determine all positive integers n for which max{sfp(n), sfp(n+ 1), sfp(n+ 2)} ≤ 150 by relating the problem to finding integral points on elliptic curves. We also prove that there are infinitely many n for which max{sfp(n), sfp(n + 1), sfp(n + 2)} < n.

A sentence-final particle (SFP, henceforth) is an optional component for a sentence in Cantonese. Traditionally an SFP contains at least one independent segment. The present study proposes that for sentences without a segmental SFP, sentencefinal intonation can act as a segmentless SFP. Systematical acoustic experiment was conducted based on this assumption. Two cross-cutting dichotomies were c...

Oil concentration (OC) in canola (B. napus L.) is determined during seed fillingperiod (SFP), and the variation in OC is greatly related to environmental conditionsduring that period. To determine factors affecting OC in canola, 12 fieldexperiments were conducted at Agricultural Research Station of Gonbad, Iran,during 2000-07. The experiments were carried out under different growingconditions. ...

In an experiment, 200 one-day-old broiler chickens (Ross 308) were used to investigate the effects of sumac fruit (Rhus coriaria L.) powder (SFP) on performance, plasma concentrations of total cholesterol (TC), triglyceride (TG), high density lipoprotein (HDL-c), low density lipoprotein (LDL-c), very low density lipoprotein (VLDL-c) and plasma fasting blood sugar (FBS), as well as proportional ...

The title compound, C(18)H(17)NO(4), was obtained accidentally through acid-catalysed aromatization of a phthalimide-substituted 2-(1-hy-droxy-eth-yl)cyclo-hex-2-enone. It exhibits an intra-molecular O-H⋯O(c) (c = carbonyl) hydrogen bond and forms a three-dimensional network structure via π-π stacking inter-actions between adjacent benzene rings (phthalimide-to-phenyl-ene and phthalimide-to-pht...

Four new macrocyclic-phthalimide ligands were synthesised via the coupling of N-(3-bromopropyl)phthalimide either to cyclen (1,4,7,10-tetraazacyclododecane) itself or its carboxylate-functionalized analogues, and photophysical studies were carried out on their corresponding Tb(III) complexes in aqueous media as a function of pH. Luminescence intensities of Tb·L1a–Tb·L3a were in ‘switched off’ m...

During an attempt to prepare a cocrystal of N-phenyl-phthalimide, C(14)H(9)NO(2), with N-(2,3,4,5,6-penta-fluoro-phen-yl)phthalimide, a new ortho-rhom-bic polymorph of the first component was obtained. This new form has Z' = 0.5 and the mol-ecule is located around a twofold axis, whereas in the previously reported polymorph (space group Pbca), the mol-ecule has no crystallographically imposed s...