CAS: 7772-99-8; Stannous Chloride(Chunks Or Pellets)

相似化合物

10025-69-1 10025-69-1 7772-99-8

上下游产品

tin Iodine mon°Chloride chlorine(E)-9-(4-aminostyryl)acridine 2-oxo-2,3-dihydro-1H-indole-4-carboxylic acid ethyl 5-amino-3-(4-tert-butylphenyl)-1-(3-methoxybenzyl)-1H-indole-2-carboxylate (2-cyanobenzyl)carbamic acid tert-butyl ester

无水氯化铜 反应生成 氯化亚锡
参考文献:Kermer,Klaus;Fischwasser,Klaus;Sauer,Antje;Grothkopp,Hartmut;Leonard,+
标题:Kermer,Klaus;Fischwasser,Klaus;Sauer,Antje;Grothkopp,Hartmut;Leonard,+

专利信息

专利号:WO-2020253243-A1
优先权日:2019-06-20
标题:Process method for catalyzed synthesis of lactide with alkali metal compound
发明人：JIANG WEI; ZHANG YANKAI; SUN PING; LI AIMIN; CHEN JINLONG; ZHANG QUANXING
权利人:NANJING UNIVERSITY OF TECHNOLOGY; NANJING QUANKAI RES INSTITUTE OF BIOMATERIALS CO LTD
摘要:The present invention provides a process method for catalyzed synthesis of lactide with an alkali metal compound, comprising: mixing an alkali metal compound with a lactic acid oligomer, and carrying out a cracking reaction to obtain lactide by means of vacuum distillation, wherein the alkali metal compound used is one or a plurality of an alkali metal carbonate, an alkali metal bicarbonate, and an alkali metal hydroxide. Compared with the prior art, the advantages of the present invention is that the alkali metal compound reacts and dissolves quickly after being added to the system avoiding the problem of pipeline blocking due to a catalyst not dissolving, the alkali metal compound used is cheap and readily available, the amount of the catalyst used is small, the yield of the reaction product lactide is greater than 80%, and the reaction is rapid and easy to industrialize.

专利号:WO-2020253244-A1
优先权日:2019-06-20
标 题 :Process for catalytic synthesis of lactide
发明人：JIANG WEI; ZHANG YANKAI; SUN PING; LI AIMIN; ZHANG QUANXING
权利人:NANJING UNIVERSITY OF TECHNOLOGY; NANJING QUANKAI RES INSTITUTE OF BIOMATERIALS CO LTD
摘要:The present invention provides a process for the catalytic synthesis of lactide, comprising: mixing a lactic acid oligomer with a composite catalyst; and synthesizing lactide under a heating condition, and collecting the product using a vacuum distillation mode. The used composite catalyst is composed of a zinc or tin compound and an alkali metal compound. Compared with the prior art, the advantages of the present invention are that: the used composite catalyst features a high production rate with a small use amount, a low reaction temperature (150-220°C), and a short reaction time (2-5 h), has a single pass yield that may reach 95% or more, reduces energy consumption compared with the prior art, and facilitates industrial implementations.

专利号:US-7301006-B2
优先权日:2002-07-16
标 题 :Methods and materials for the synthesis of modified peptides
发明人：YOUNG TRAVIS G; KIESSLING LAURA L
权利人:WISCONSIN ALUMNI RES FOUND
摘要:Methods and protected amino acids useful as building blocks (protected monomers) for the synthesis of peptides and proteins that are selectively modified at one or more side-chain hydroxyl groups. Azide-bearing protecting groups allow the selective deprotection of side-chain hydroxyl groups of amino acids after synthesis of a peptide. Reaction conditions for removal of the azide-bearing protecting group can be selected which are substantially orthogonal to those that will remove α-amino protecting groups typically employed in peptide synthesis, such that hydroxyl groups protected with the azide-bearing protecting group remain protected during synthesis of the peptide chain. Various protecting groups which are readily available can be used for protecting potentially reactive side chain groups of amino acids in the peptide or protein to be modified. Preferred side-chain protecting groups are chemically distinguishable from the azide-bearing protecting group and substantially orthogonal reaction conditions can be selected such that side-chain protection of other amino acids is maintained when the azide-bearing protecting group is removed. The use of the azide-bearing protecting group of this invention for one or more hydroxy amino acids during peptide synthesis allows the selective unmasking of those azide-protected side-chain hydroxyl groups and selective modification of the hydroxyl groups that are selectively unmasked. The methods and materials herein are particularly used in synthesis of sulfated, phosphorylated and glycosylated peptides and proteins. Kits and methods of synthesizing a modified peptide or protein using the kits are also provided.

专利号:WO-2025053792-A1
优先权日:2023-09-06
标题:Collective synthesis of phantomolin family through total synthesis of the sesquiterpene lactone molephantin
发明人：CHIBA SHUNSUKE; PATOURET REMI HENRI LOUIS; LI HOI YEUNG; LAI SOAK KUAN
权利人:UNIV NANYANG TECH
摘要:Disclosed herein are processes to generate an intermediate in the total synthesis of (+)- molephantin or a derivative thereof, and a total synthesis of (+)-molephantin or a derivative thereof. Also disclosed herein are methods of forming a compound of formula XIV and of forming a compound of formula XV, wherein compound of formula XIV and compound of formula XV are as defined in the description.

专利号:US-2024309024-A1
优先权日:2023-03-14
标题 :Direct synthesis of alkenylhalosilanes
发明人：LEWIS KENRICK MARTIN; ZHU YANJUN; BYRNE CHRISTOPHER M
权利人:MOMENTIVE PERFORMANCE MAT INC
摘要:A process for the direct synthesis of alkenylhalosilane monomers. Forming a slurry of liquid and copper-activated silicon from fresh silicon, cyclone fines and/or fine dust from silicon grinding, ultrafines and/or spent contact mass from the Direct Synthesis of alkylhalosilanes and arylhalosilanes, in a thermally stable solvent. Reacting the silanes by agitating the slurry with at least one unsaturated aliphatic or cycloaliphatic organohalide of the formula R1X, and optionally an organohalosilane and/or hydrogen halide, in the presence of a polymerization inhibiting Lewis base additive, at a reaction time, temperature and pressure effective to produce alkenylhalosilanes having the formulae, R1SiHX2, R12SiHX, R13SiX, R1SiX3, and R12SiX2 or mixtures thereof.

专利号:US-11040938-B2
优先权日:2016-07-27
标 题 :Continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts
发明人：MA BING; PAN SHUAI
权利人:SHANGHAI HYBRID—CHEM TECH; SHANGHAI HYBRID CHEM TECH
摘要:The present invention provided a continuous flow process for the synthesis of phenylhydrazine salts and substituted phenylhydrazine salts. Diazotization, reduction, acidic hydrolysis and salifying with acids are innovatively integrated together. Using acidic liquids of aniline or substituted aniline, diazotization reagents, reductants and acids as raw materials, phenylhydrazine derivative salts is obtained through the synthesis process, which is a three-step continuous tandem reaction including diazotization, reduction, acidic hydrolysis and salifying. The described synthesis process is a kind of integrated solutions, which is carried out in an integrated reactor. The feed inlets of the integrated reactor are continuously filled with raw materials. In the integrated reactor, diazotization, reduction, acidic hydrolysis and salifying are carried out continuously and orderly, and phenylhydrazine salts or substituted phenylhydrazine salts is obtained in the outlet of the integrated reactor without interruption. The total reaction time is no more than 20 min.