CAS: 1197-66-6; 2,2,6,6-Tetramethyl-2H-3,5,6-Trihydropyran-4-One

相似化合物

1194-16-7 1073-79-6 14505-80-7

上下游产品

三丙酮二醇 2,6-Dihydroxy-2,6-Dimethyl-Heptan-4-One 3682-91-5
2,2,5,5-四甲基四氢呋喃-3-酮 2,2,5,5-Tetramethyltetrahydro-3-Oxofuran 5455-94-7

📜2,6-二甲基-2,5-庚二烯-4-酮置于盐酸体系中,用 水 用作溶剂,化学反应 96.0H,以6.63 G的收率获得2,2,6,6-四甲基-2H-3,5,6-三氢吡喃-4-酮
参考文献:代表 Janthitrem B,Jbir-137 和 Shearinine G 西部部分的吡喃环戊二烯的合成
标题:代表 Janthitrem B,Jbir-137 和 Shearinine G 西部部分的吡喃环戊二烯的合成
摘要:一组吡喃环戊二烯:代表真菌吲哚二萜类 Janthitrem B,Jbir-137 和舍利宁 G 的 Abcd 部分结构的四环化合物是从二氢吲哚开始合成的.Janthitrem B 的羟基化西部切片分 8 步获得,总产率为 10%.
Doi:10.1002/ejoc.202101454

专利信息

专利号:WO-0142264-A1
优先权日:1999-12-10
标 题 :Method for the synthesis of sialylated oligosaccharide donors
发明人：MEHTA SEEMA; GILBERT MICHEL; WAKARCHUK WARREN W; WHITFIELD DENNIS M
权利人:CA NAT RESEARCH COUNCIL; MEHTA SEEMA; GILBERT MICHEL; WAKARCHUK WARREN W; WHITFIELD DENNIS M
摘要:A method for the synthesis of aryl thioglycosides comprising a sialylated residue of β-D-galactose is disclosed. The method consists of preparing by a chemical synthesis a non-sialylated aryl thioglycoside, and enzymatically sialylating the latter with a sialic acid in the presence of a suitable sialyltransferase. The sialylated aryl thioglycoside is then chemically derivatized by standard procedures, to provide a derivative suitable for use as a donor in chemical syntheses of sialylated oligosaccharides. The derivatized sialylated aryl thioglycosides are prepared in high yields, due to reduced number of chemical and purification steps involved in the process. Derivatized aryl thioglycosides useful as building blocks for the synthesis of biologically active sialylated oligosaccharides are also disclosed.

专利号:US-9029547-B1
优先权日:2013-12-07
标 题 :Synthesis of 4-aryl 4-acyl piperidine, its salts and analogs using indium metal
发明人：MAJEED MUHAMMED; RAMANUJAM RAJENDRAN; NAGABHUSHANAM KALYANAM
权利人:MAJEED MUHAMMED; RAMANUJAM RAJENDRAN; NAGABHUSHANAM KALYANAM
摘要:A novel process for the synthesis of 4-aryl 4-acyl piperidine derivatives using indium metal is described. Specifically, a novel process for the synthesis of 4-acetyl 4-phenyl piperidine and its salts using indium metal is described. This divisional application is specifically drawn to compounds 4-aryl 1,4-diacyl piperidine and 1,4 diacetyl 4-phenyl piperidine.

专利号:US-10730904-B2
优先权日:2012-11-14
标 题:Method for liquid-phase synthesis of nucleic acid
发明人：NONOGAWA MITSURU; NAGATA TOSHIAKI; SAITO HIDEKI; YASUMA TSUNEO
权利人:TAKEDA PHARMACEUTICALS CO
摘要:In this method, an oligonucleotide represented by formula (II) [wherein Y 1 , Q, Base, r and r′ are each as defined in claim 1 ] is prepared by using, as a synthesis unit, a novel nucleoside monomer compound represented by formula (I) [wherein X, R 1 , Y, Base, Z, Ar, R 2 , R 3 and n are each as defined in claim 1 ]. The novel nucleoside monomer compound is a nucleoside, the base moiety of which is substituted with an aromatic-hydrocarbon-ring-carbonyl or -thiocarbonyl group having at least one hydrophobic group. The method can dispense with column-chromatographic purification in every reaction, and enables base elongation not only in the 3′-direction but also in the 5′-direction, thus attaining efficient liquid-phase mass synthesis of an oligonucleotide.

专利号:US-6951932-B2
优先权日:2001-10-25
标 题:Synthesis of 2-aralkoxyadenosines and 2-alkoxyadenosines
发明人：MOORMAN ALLAN R
权利人:KING PHARMACEUTICALS RES & DEV
摘要:The invention provides new methods for synthesis of 2-aralkyloxyadenosines and 2-alkoxyadenosines. The invention is particularly useful for synthesis of 2-[2-(4-chlorophenyl)ethoxy]adenosine. Preferred methods of the invention include activating a guanosine compound followed by hydrolysis; alkylating the hydrolyzed compound with subsequent animation to provide a 2-aralkyloxyadenosine or a 2-alkoxyadenosine compound.

专利号:US-2009105470-A1
优先权日:2005-02-22
标题 :Tin Mediated Regioselective Synthesis of Sucrose-6-Esters
发明人：RATNAM RAKESH; MOFIZUDDIN MOHAMMED; AURORA SUNDEEP
权利人:PHARMED MEDICARE PRIVATE LTD A
摘要:A method is disclosed for regioselective synthesis of sucrose-6-acetate via formation of a novel sucrose-tin adduct using sucrose and DBTO. The novel tin adduct can be represented by a formula (6-O-sucrose)-O—Snbutyl.sub.2-O-(6-O-sucrose) or as 1,3.(di O-sucrose) dibutyl stannylene. The adduct is acylated to yield sucrose-6-acetate or sucrose-6-benzoate as major product.

专利号:US-6316593-B1
优先权日:1996-02-09
标题:Synthesis of VIP analog
发明人：BOLIN DAVID ROBERT; DANHO WALEED; FELIX ARTHUR M
权利人:HOFFMANN LA ROCHE
摘要:This invention relates to a novel process for the synthesis of vasoactive intestinal peptide analog Ac(1-31)-NH2 from four protected peptide fragments.