CELL publishes advertisements for positions available and for announcements of meetings, symposia, and courses. The 1995 rates are $425 for a quarter page, $695 for a half page, and $1100 for a full page. We will accept either camera-ready material by mail, or copy to be typeset by mail or fax. If you choose to have your ad typeset by CELL, the size of the ad will be determined by the number of...

MNDO semi-empirical SCF MO calculations are used to study the pyramidal nitrogen atom inversion and configurational equilibria in the title compounds.

CELL publishes advertisements for positions available and for announcements of meetings, symposia, and courses. The 1995 rates are $425 for a quarter page, $695 for a half page, and $1100 for a full page. We will accept either camera-ready material by mail, or copy to be typeset by mail or fax. If you choose to have your ad typeset by CELL, the size of the ad will be determined by the number 0f...

j NEURON publishes advertisements for positions available and for announcements of courses, conferences, t and symposia. The 1996 rates are $175 for a quarter page, $305 for a half page, and $575 for a full page. We will accept camera-ready materials by mail, or copy to be typeset by mail or fax. If you choose to have your ad L typeset by NEURON, the size of the ad will be determined by the num...

NEURON publishes advertisements for positions available and for announcements of meetings, symposia, and courses. The 1995 rates are $175 for a quarter page, $305 for a half page, and $575 for a full page. We will accept either camera-ready material by mail, or copy to be typeset by mail or fax. If you choose to have your ad typeset by NEURON, the size of the ad will be determined by the number...

NEURON publishes advertisements for positions available and for announcements of meetings, symposia, and courses. The 1995 rates are $175 for a quarter page, $305 for ahalfpage, and $575 for a full page. :W~e will accept either camera-ready material by mail, or copy to be typeset by mall or fax. ffyou choose to have your ad typeset by NEURON, the size of the ad will be determined by the number ...

An extremely facile and efficient procedure which has been developed for the synthesis of dihydropyrrol-2-ones. One-pot four-component reaction of amines, dialkyl acetylenedicarboxylates and formaldehyde in the presence of N,N,N,N-tetramethylguanidinium acetate [TMG][Ac] in methanol at ambient temperature provides substituted dihydropyrrol-2-ones in good to high yields. The important aspects of...

Two highly efficient protocols for the production of bis-coumarins under solvent-free conditions have been introduced. The reaction of 4-hydroxycoumarin (2 eq.) with arylaldehydes (1 eq.) using phthalimide-N-sulfonic acid (PhtSA) or isatin-N-sulfonic acid (IsSA), as solid-acid catalysts, afforded the mentioned compounds with good to excellent yields in short times.Briefly, we have introduced tw...

This study reports the synthesis of chitosan anchored Schiff base, ([2-oxo-1H-indol-3-ylidene] amino) chitosan and its Cu (II) metal complex. The complex was characterized by elemental analysis, FT-IR Spectrum, thermogravimetry analysis .The crystallinity of the compound was analyzed by powder X-ray diffraction technique. The catalytic efficiency of complex was studied in the oxidation of alcoh...