The present invention provides a polythiol composition containing, as the main component, a polythiol compound (a) having two or more mercapto groups, and containing 0.5% by mass or less of a nitrogen-containing compound (b) in which at least one mercapto group in the polythiol compound (a) is substituted with a group represented by formula (1). ##STR00001##

The present invention relates to polycyclic aromatic hydrocarbon-based compounds, for a molecular electronic device, enabling molecular rectification, and molecular electronic devices comprising a molecular layer formed by means of the compounds self-assembled on an electrode. The compounds according to the present invention can realize rectifying properties by being introduced between electrodes and thus enable a high rectification ratio by means of low voltage driving, and thus can be substituted for a silicon-based diode device and, more particularly, can be utilized for a wearable device, Bluetooth, an IoT enabling device and the like which require low voltage driving.

The present invention relates to polycyclic aromatic hydrocarbon-based compounds, for a molecular electronic device, enabling molecular rectification, and molecular electronic devices comprising a molecular layer formed by means of the compounds self-assembled on an electrode. The compounds according to the present invention can realize rectifying properties by being introduced between electrodes and thus enable a high rectification ratio by means of low voltage driving, and thus can be substituted for a silicon-based diode device and, more particularly, can be utilized for a wearable device, Bluetooth, an IoT enabling device and the like which require low voltage driving.

Disclosed are methods for preparing disulfide compounds through oxidative coupling of thiol compounds. Thiols are oxidized to the corresponding disulfide compound in high yield in presence of a base and a metal salt. The method uses low catalyst loadings and provides organic disulfide compounds with little to no byproducts.

Disclosed are methods for preparing disulfide compounds through oxidative coupling of thiol compounds. Thiols are oxidized to the corresponding disulfide compound in high yield in presence of a base and a metal salt. The method uses low catalyst loadings and provides organic disulfide compounds with little to no byproducts.

The present invention relates to a compound of formula (I) wherein: R.sup.1 is C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.2alkoxy-C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.2fluoroalkoxy, ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl; R.sup.2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl, ethynyl, C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.3fluoroalkyl, C.sub.1-C.sub.2fluoroalkoxy, C.sub.1-C.sub.2alkoxy-C.sub.1-C.sub.3alkoxy-, or C.sub.1fluoroalkoxy-C.sub.1-C.sub.3alkoxy-; provided that when R.sup.1 is ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl, then R.sup.2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl or ethynyl; and Y is O, S, S(O), S(O).sub.2, N(C.sub.1-C.sub.2alkyl), N(C.sub.1-C.sub.2alkoxy), C(O), CR.sup.8R.sup.9 or CR.sup.10R.sup.11CR.sup.12R.sup.13; and G, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.

##STR00001##

The present invention relates to a compound of formula (I) wherein: R.sup.1 is C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.2alkoxy-C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.2fluoroalkoxy, ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl; R.sup.2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl, ethynyl, C.sub.1-C.sub.3alkoxy, C.sub.1-C.sub.3fluoroalkyl, C.sub.1-C.sub.2fluoroalkoxy, C.sub.1-C.sub.2alkoxy-C.sub.1-C.sub.3alkoxy-, or C.sub.1fluoroalkoxy-C.sub.1-C.sub.3alkoxy-; provided that when R.sup.1 is ethyl, n-propyl, n-butyl, cyclopropyl or ethynyl, then R.sup.2 is hydrogen, ethyl, n-propyl, cyclopropyl, vinyl or ethynyl; and Y is O, S, S(O), S(O).sub.2, N(C.sub.1-C.sub.2alkyl), N(C.sub.1-C.sub.2alkoxy), C(O), CR.sup.8R.sup.9 or CR.sup.10R.sup.11CR.sup.12R.sup.13; and G, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are as defined herein; wherein the compound of formula (I) is optionally present as an agrochemically acceptable salt thereof. These compounds are suitable for use as herbicides. The invention therefore also relates to a method of controlling weeds, especially grassy monocotyledonous weeds, in crops of useful plants, comprising applying a compound of formula (I), or a herbicidal composition comprising such a compound, to the plants or to the locus thereof.

##STR00001##

A class of compounds useful in pharmaceutical compositions and methods for treating or preventing cancer is described. Analogs of Mycalolide B have been prepared and tested in breast and ovarian cancer cell lines. The compounds show utility for inhibition of survival and proliferation of tumor cells. The compounds have been shown to disrupt actin.

A class of compounds useful in pharmaceutical compositions and methods for treating or preventing cancer is described. Analogs of Mycalolide B have been prepared and tested in breast and ovarian cancer cell lines. The compounds show utility for inhibition of survival and proliferation of tumor cells. The compounds have been shown to disrupt actin.

Disclosed are methods for preparing disulfide compounds through oxidative coupling of thiol compounds. Thiols are oxidized to the corresponding disulfide compound in high yield in presence of a base and a metal salt. The method uses low catalyst loadings and provides organic disulfide compounds with little to no byproducts.