CAS: 6153-56-6; Oxalic Acid Dihydrate

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CAS号62-76-0 草酸钠 | CAS号494-38-2 吖啶橙 | CAS号82207-69-0 N,N'-bis-(3-dim... | CAS号620-81-5 草酰苯胺 | CAS号10049-04-4 二氧化氯 | CAS号611-73-4 苯甲酰甲酸 | CAS号814-91-5 草酸铜 | CAS号6309-61-1 1,4-二氢-6-甲基喹喔啉-... | CAS号640-67-5 草酸锰 | CAS号6047-25-2 草酸亚铁二水合物 | CAS号100516-90-3 2,6,7-Pteridine...

Sodium Oxalate 在 盐酸,水体系中,反应 1.0H,以56%的收率获得oxalic Acid Dihydrate
参考文献:Manufacture Of Oxalic Acid Dihydrate
标题:Manufacture Of Oxalic Acid Dihydrate
摘要:一种制备草酸二水合物的工艺,其中将草酸钠的水溶液与盐酸接触,然后冷却混合物以沉淀草酸,随后可选择性地将回收和循环的草酸钠和盐酸送回反应室.

专利信息

专利号:US-4310467-A
优先权日:1980-10-22
标题:Process and intermediates for the synthesis of vitamin D3 metabolites
发明人：BATCHO ANDREW D; BERGER JR DONALD E; USKOKOVIC MILAN R
权利人:HOFFMANN LA ROCHE
摘要:The present disclosure is directed to a process and intermediates for the synthesis of Vitamin D 3 metabolites such as 1,25-dihydroxycholecalciferol, 25-hydroxycholecalciferol and 24R,25-dihydroxycholecalciferol from 17-keto steroids via intermediates having the natural steroid configuration at the 20-position. These novel intermediates are prepared from 17-keto steroids by reaction with ethyltriphenylphosphonium halides followed by reaction with formaldehyde to form comounds having the natural steroid configuration at the 20-position and which are suitable substrates for the preparation of the aforementioned Vitamin D 3 metabolites.

专利号:US-11826833-B2
优先权日:2013-04-12
标 题 :Synthesis of bimetallic nanoparticle catalysts using microwave irradiation
发明人：HUMPHREY SIMON M; GARCIA STEPHANY
权利人:UNIV TEXAS
摘要:The present invention provides compositions and methods of making bimetallic metal alloys of composition for example, Rh/Pd; Rh/Pt; Rh/Ag; Rh/Au; Rh/Ru; Rh/Co; Rh/Ir; Rh/Ni; Ir/Pd; Ir/Pt; Ir/Ag; Ir/Au; Pd/Ni; Pd/Pt; Pd/Ag; Pd/Au; Pt/Ni; Pt/Ag; Pt/Au; Ni/Ag; Ni/Au; or Ag/Au prepared using microwave irradiation.

专利号:US-4360684-A
优先权日:1981-04-08
标 题 :Process for the preparation of (2S)-tetrahydro-2α-methyl-6-oxo-4βα-carboxylic acid
发明人：CVETOVICH RAYMOND J; MELILLO DAVID G; RYAN KENNETH M; SLETZINGER MEYER
权利人:MERCK & CO INC
摘要:Disclosed is a process for preparing (2S)-tetrahydro-2 alpha -methyl-6-oxo-4 beta -amino-2H-pyran-3 alpha -carboxylic acid (I) which is useful in the synthesis of thienamycin. The process proceeds via a stereospecific reduction of the 2-acetyl-3-(R)- alpha -methylbenzylamino-2-pentenedioic acid diester (II). I II wherein R is, alpha -methylbenzyl, and R1 is lower alkyl having 1-6 carbon atoms or arylalkyl such as benzyl.

专利号:US-2025282777-A1
优先权日:2024-03-06
标 题:Methods of Making Tolebrutinib
发明人：BALTES DAVID; BOHORC BOJAN; SAKHAII PEYMAN
权利人:PRINCIPIA BIOPHARMA INC
摘要:Disclosed herein are improved synthetic routes for making (R)-1-(1-acryloylpiperidin-3-yl)-4-amino-3-(4-phenoxyphenyl)-1H-imidazo[4,5-c]pyridin-2(3H)-one (tolebrutinib). Also disclosed herein are novel compounds used in the synthesis of (R)-1-(1-acryloylpiperidin-3-yl)-4-amino-3-(4-phenoxyphenyl)-1H-imidazo[4,5-c]pyridin-2(3H)-one.

专利号:EP-2167673-B1
优先权日:2007-06-25
标题:Process for the conversion of c-terminal peptide esters or acids to amides employing subtilisin in the presence of ammonium salts
发明人：EGGEN IVO FRANCI; BOERIU CARMEN G
权利人:ORGANON NV
摘要:The present invention relates to a process for the amidation of C-terminal esters or acids of peptide substrates in solution-phase synthesis of peptides, comprising amidating one or more peptide substrates comprising C-terminal esters or acids using the protease subtilisin in any suitable form in the presence of an ammonium salt derived from an acid having a pKa above 0. This process is useful in the production of protected or unprotected peptides.

专利号:US-11390645-B2
优先权日:2016-08-08
标题:Process for the preparation of 3β-hydroxy-17-(1H-benzimidazol-1-YL) androsta-5,16-diene
发明人：BARBIERI FRANCESCO; LENNA ROBERTO
权利人:IND CHIMICA SRL
摘要:A process for the synthesis of β-hydroxy 3-17-(1H-benzimidazol-1-yl)androsta-5,16-diene is described, a compound also known as Galeterone and used in the treatment of prostate cancer, having the formula (6).