초록 ▼

A thermoelectric device with improved efficiency is provided. In one embodiment, the thermoelectric device includes an electrical conductor thermally coupled to a cold plate and a thermoelement electrically coupled to the electrical conductor. The thermoelement is constructed from a thermoelectric m

A thermoelectric device with improved efficiency is provided. In one embodiment, the thermoelectric device includes an electrical conductor thermally coupled to a cold plate and a thermoelement electrically coupled to the electrical conductor. The thermoelement is constructed from a thermoelectric material and has a plurality of tips through which the thermoelement is electrically coupled to the electrical conductor. The thermoelectric tips provide a low resistive connection while minimizing thermal conduction between the electrical conductor and the thermoelement.

대표청구항 ▼

A thermoelectric device with improved efficiency is provided. In one embodiment, the thermoelectric device includes an electrical conductor thermally coupled to a cold plate and a thermoelement electrically coupled to the electrical conductor. The thermoelement is constructed from a thermoelectric m

A thermoelectric device with improved efficiency is provided. In one embodiment, the thermoelectric device includes an electrical conductor thermally coupled to a cold plate and a thermoelement electrically coupled to the electrical conductor. The thermoelement is constructed from a thermoelectric material and has a plurality of tips through which the thermoelement is electrically coupled to the electrical conductor. The thermoelectric tips provide a low resistive connection while minimizing thermal conduction between the electrical conductor and the thermoelement. prises a phosphine ligand. 13. The process of claim 10 wherein the 3,4-dihydronaphthalene-1-yl phosphate compound is prepared by reacting a 1-tetralone compound with a sterically hindered Grignard reagent and a halophosphate diester. 14. A process for the preparation of a vinylphosphate comprising reacting an enolizable ketone with a sterically hindered Grignard reagent and a halophosphate diester. 15. The process of claim 14 wherein the steric hindrance of the sterically hindered Grignard reagent is sufficient to provide at least a 75% yield of the vinylphosphate. 16. The process of claim 14 wherein the sterically hindered Grignard reagent is selected from secondary alkyl Grignard reagents, tertiary alkyl Grignard reagents and ortho-alkyl substituted phenyl Grignard reagents. 17. A process for the preparation of a 1-(4-alkoxyphenyl)-6-methoxy-3,4-dihydronaphthalene compound comprising the steps: (a) reacting 6-methoxy-1-tetralone with a mesityl Grignard reagent and a halophosphate diester to produce a 6-methoxy-3,4-dihydronaphth-1-yl phosphate compound; and (b) reacting the 6-methoxy-3,4-dihydronaphth-1-yl phosphate compound with a 4-alkoxyphenylnagnesium halide in the presence of a palladium catalyst comprising a phosphine ligand. 18. The process of claim 17 wherein the 4-alkoxy group is a 4-[2-(dialkyl-amino)ethoxy] group. 19. The process of claim 18 wherein the 4-(2-dialkylamino)ethoxy group is a 4-[2-(pyrrolidin-N-yl)ethoxy] group. 20. The process of claim 17 wherein the mesityl Grignard reagent is mesitylmagnesium bromide. 21. The process of claim 17 wherein the halophosphate diester is selected from diphenyl chlorophosphate and diethyl chlorophosphate.