CAS: 1671-87-0; 3,6-Di(Pyridin-2-yl)-1,2,4,5-Tetrazine

相似化合物

23195-62-2 36770-50-0 866117-17-1

上下游产品

benzamidine hydr°Chloride dihydrate 2-cyano-pyridine hydr°Chloride 2-Cyanopyridine N,N'-bis(picolinamide)azine 1,2,3,4-tetrachloroanthracene 3,6-di(pyridin-2'-yl)-s-tetrazine 4,4'-(1,4-phenylene)bis(3,6-dipyridin-2-ylpyridazine)

2-氰基吡啶置于1,2,3,4,5,6,7,8-八硫杂环辛烷,一水合肼,溶剂黄146,Sodium Nitrite体系中,用 乙醇,水 用作溶剂,化学反应 4.0H,反应生成3,6-二-2-吡啶基-1,2,4,5-四嗪
参考文献:研究天然除虫菊酯的 Diels-Alder 反应性
标题:研究天然除虫菊酯的 Diels-Alder 反应性
摘要:由于活性成分天然除虫菊酯的功效和对环境有利的品质,以除虫菊为基础的杀虫剂一直是家庭和农业害虫防治的理想选择.然而,天然除虫菊酯在热,光和氧气作用下的降解倾向影响了它们的长期储存和随后作为杀虫剂的有效性.虽然已经实施了许多加工和储存对策,但最近已经努力综合修改除虫菊酯支架,特别关注对这些降解过程敏感的功能.这项工作描述了对除虫菊酯 I 和 Ii 的 Diels-Alder 反应性及其生产稳定的除虫菊酯衍生物的潜力的调查.对除虫菊酯 I 和 Ii 的正常电子需求 Diels-Alder 环加成的初步探索发现,即使在强制条件下,反应也不会进行.然而,一系列除虫菊酯衍生物是从逆电子需求 Diels Alder 反应中获得的,这些反应使用这些天然产物作为亲二烯体和缺电子的 1,2,4,5-四嗪作为二烯.
Doi:10.1016/j.Tet.2023.133326

专利信息

专利号:US-7538061-B2
优先权日:2001-05-18
标题 :One-step production of 1,3-propanediol from ethylene oxide and syngas with a cobalt-iron catalyst
发明人：KNIFTON JOHN FREDERICK; JAMES TALMADGE GAIL; SLAUGH LYNN HENRY; WEIDER PAUL RICHARD; ALLEN KEVIN DALE; POWELL JOSEPH BROUN
权利人:SHELL OIL CO
摘要:Disclosed is a new catalyst composition comprising a bimetallic Co—Fe catalyst, optionally complexed with a ligand selected from a N-heterocycle, phosphine, or porphorine ligand, that provides a lower cost alternative for the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, a catalyst containing cobalt carbonyl: iron carbonyl with no ligand, or a catalyst containing a cobalt carbonyl: octaethylporphine iron acetate provide moderate yields of 1,3-PDO in a one step synthesis under mild conditions.

专利号:US-6903044-B2
优先权日:2001-05-18
标题:One-step production of 1,3-propanediol from ethylene oxide and syngas with a catalyst with a N-heterocyclic ligand
发明人：KNIFTON JOHN FREDERICK; JAMES TALMADGE GAIL; ALLEN KEVIN DALE; WEIDER PAUL RICHARD; POWELL JOSEPH BROUN; SLAUGH LYNN HENRY; WILLIAMS TIMOTHY
权利人:SHELL OIL CO
摘要:Disclosed is a new catalyst composition comprising a bimetallic Co—Ru catalyst complexed with a N-heterocylcic ligand that is effective, economical, and provides improvements in oxidative stability in the one step synthesis of 1,3-propanediol (1,3-PDO) from ethylene oxide and synthesis gas. For example, cobalt-ruthenium-2,2′-bipyrimidine, 2,2′-dipyridyl, or 2,4,6-tripridyl-s-triazine catalyst precursors in cyclic ether solvents, such as 1,3-dioxolane, 1,4-dioxolane, 1,4-dioxane, and 2-ethyl-2-methyl-1,3-dioxolane, provide good yields of 1,3-PDO in a one step synthesis.

专利号:US-7115540-B2
优先权日:2002-02-13
标题 :Synthesis of aliphatic 1,3-diols utilizing reduced ligand concentration and water extraction
发明人：POWELL JOSEPH BROUN; WEIDER PAUL RICHARD; KNIFTON JOHN FREDERICK; ALLEN KEVIN DALE; SLAUGH LYNN HENRY; ARHANCET JUAN PEDRO
权利人:SHELL OIL CO
摘要:This invention is a process for synthesizing aliphatic 1,3-diols in one step by hydroformylation and hydrogenation of oxirane, carbon monoxide, and hydrogen employing a catalyst comprising a cobalt carbonyl compound and a cocatalyst metal compound ligated with a ligand in a ligand to cocatalyst metal atom molar ratio in the range of 0.2:1.0 to 0.6:1.0, optionally in the presence of a promoter, where recovery of product is preferably accomplished via water extraction of a diol rich phase from the bulk reaction mixture. The process modifications can, particularly in combination, be beneficial with respect to product recovery, catalyst recycle, and overall economics of a one-step process for producing aliphatic 1,3-diols.

专利号:US-10927139-B2
优先权日:2012-11-22
标 题:Chemically cleavable group
发明人：ROBILLARD MARC STEFAN; VERSTEEGEN RONNY MATHIEU; TEN HOEVE WOLTER; ROSSIN RAFFAELLA
权利人:TAGWORKS PHARMACEUTICALS B V
摘要:Disclosed is the use of the reactive components of the inverse electron-demand Diels Alder reaction for chemical masking and unmasking in vitro. This can be applied in complex chemical reactions and, particularly in the synthesis of biomolecules, e.g. on solid supports. The reactive components are a dienophile, particularly a trans-cyclooctene, and a diene, particularly a tetrazine.

专利号:US-2003166977-A1
优先权日:2002-02-13
标题 :Synthesis of aliphatic 1, 3-diols utilizing reduced ligand concentration and water extraction

专利号:US-11471865-B2
优先权日:2018-12-17
标题:Synthesis of platinum single-site centers through metal-ligand self-assembly on metal oxide supports
发明人：TAIT STEVEN L; CHEN LINXIAO
权利人:UNIV INDIANA TRUSTEES
摘要:The invention describes single-site metal catalysts such as Pt single-site centers with a 3,6-di-2-pyridyl-1,2,4,5-tetrazine (DPTZ) ligand on support such as a powdered MgO, Al2O3, CeO2 or mixtures thereof.