Heterocycles are among the well-established classes of compounds, constituting a wide
range of organic molecules. These structural motifs not only have a dominant presence in a …

In this investigation, a practical green chemistry procedure for synthesis of
octahydroquinazolinone according to the Biginelli reaction using 5, 5-dimethyl-1, 3 …

As a synthetic process the Wittig reaction is probably without equal. Its use in the synthesis
of naturally occurring molecules1 and as a general method for the preparation of alkenes2 …

Kinetic studies were made of the reactions between triphenylphosphine and dialkyl
acetylenedicarboxylates in the presence of a NH-acid such as pyrazole. To determine the …

Stable crystalline phosphorus ylides containing chlorine and sulfur were obtained in
excellent yields from the 1: 1: 1 addition reaction between triphenylphosphine and dialkyl …

An efficient reaction between triphenylphosphine or triphenyl phosphite and 2-oxoindoline-3-
ylidene derivatives in the presence of acetylenic esters leads to functionalized 2-oxoindoline …

A general and practical route for the synthesis of phosphorus compounds containing
trifluoromethyl or trichloromethyl groups by a one-pot condensation triphenylphosphine and …

Stable crystalline phosphorus ylides were obtained in excellent yields from the 1: 1: 1
addition reaction between triphenylphosphine and dialkyl acetylenedicarboxylates, in the …

Serendipitous synthesis of 1,4-benzothiazin derivatives using 2-[(2-aminophenyl)disulfanyl]aniline
Page 1 General Papers ARKIVOC 2005 (xv) 25-29 ISSN 1424-6376 Page 25 © ARKAT USA …

Fused pyrazole systems are biologically important molecules. An efficient two-step protocol
has been developed to make new molecules of this family via the reaction between dimethyl …