专利号:US-8476441-B2 优先权日:2009-01-29 标 题 :Intermediates in the enantioselective synthesis of 3-(aminomethyl)-5-methyl-hexanoic acid 发明人:CONNON STEPHEN JOSEPH; PESCHIULLI ALDO; MARKEY LYN 权利人:CONNON STEPHEN JOSEPH; PESCHIULLI ALDO; MARKEY LYN; TRINITY COLLEGE DUBLIN 摘要:(S)-(+)-3-(aminomethyl)-5-methyl-hexanoic acid or (S)-pregabalin is an anticonvulsive drug. In addition to its use as an anticonvulsive agent, pregabalin has also been indicated as a medicament in the treatment of anxiety, neuropathic pain and pain in patients with fibromyalgia. Provided herein are thioester intermediates in the synthesis of and processes for the synthesis of 3-(aminomethyl)-5-methyl-hexanoic acid in the (R) or (S) configuration.
专利号:US-11685712-B2 优先权日:2019-12-30 标 题 :Synthesis of monofunctional thiuram accelerator 发明人:SPILKER THOMAS FRANKLIN; Jin ji yang; FEHER FRANK J 权利人:GOODYEAR TIRE & RUBBER 摘要:The present invention provides a route for synthesizing monofunctional thiuram compounds that is safe, environmentally friendly, and cost effective. This method specifically involves synthesizing a monofunctional thiuram by (1) reacting a tetraorganylthiuram disulfide with an organyl mercaptan to produce the monofunctional thiuram and a dithiocarbamate metal salt or a dithiocarbamate metalloid salt under basic conditions, (2) separating the monofunctional thiuram in an organic phase from the dithiocarbamate metal salt or the dithiocarbamate metalloid salt in an aqueous phase, and (3) recovering the monofunctional thiuram from the aqueous phase. The monofunctional thiuram compounds made in accordance with this invention are of particular value as accelerators for use in the vulcanization of rubber. The use of these monofunctional thiuram compounds as accelerators provides good cure rates and as well as good scorch safety.
专利号:US-2023029068-A1 优先权日:2019-12-30 标题:Synthesis of monofunctional thiuram accelerator
专利号:US-2012046468-A1 优先权日:2009-01-29 标题 :Intermediates in the enantioselective synthesis of 3-(aminomethyl)-5-methyl-hexanoic acid
专利号:EP-3845520-B1 优先权日:2019-12-30 标题:Synthesis of monofunctional thiuram accelerator
专利号:US-2021198194-A1 优先权日:2019-12-30 标题 :Synthesis of monofunctional thiuram accelerator
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