CAS: 75-13-8; Isocyanic Acid

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CAS号64-17-5 乙醇 | CAS号51-79-6 氨基甲酸乙酯 | CAS号67-56-1 甲醇 | CAS号598-55-0 氨基甲酸甲酯 | CAS号57-13-6 尿素 | CAS号108-80-5 氰尿酸 | CAS号201230-82-2 carbon monoxide | CAS号1333-74-0 氢 | CAS号10102-43-9 一氧化氮 | CAS号77287-34-4 甲亚胺酸 | CAS号471-47-6 草氨酸 | CAS号3232-84-6 尿唑 | CAS号5329-14-6 氨基磺酸 | CAS号5663-07-0 carbamoylsulfam... | CAS号25410-32-6 carbamoyl isoth... | CAS号2911-21-9 6-methyl-1,3-ox... | CAS号2687-25-4 二氨基甲苯 | CAS号2778-42-9 1,3-双(2-异氰基-2-丙基)苯 | CAS号698-90-8 N-环己基脲 | CAS号13146-75-3 2H-Thiazolo[3,2...

📜Silver Cyanate置于硫化氢体系中,化学反应生成 异氰酸酯
参考文献:Birckenbach,L.; Kolb,H.,Berichte Der Deutschen Chemischen Gesellschaft,1935,Vol. 68,P. 895-912
标题:Birckenbach,L.; Kolb,H.,Berichte Der Deutschen Chemischen Gesellschaft,1935,Vol. 68,P. 895-912

专利信息

专利号:US-6504041-B2
优先权日:1996-11-15
标题 :Synthesis of ruthenium or osmium metathesis catalysts
发明人：GRUBBS ROBERT H; BELDERRAIN TOMAS R; BROWN SETH N; WILHELM THOMAS E
权利人:CALIFORNIA INST OF TECHN
摘要:The present invention relates to the synthesis of highly active ruthenium and osmium carbene metathesis catalyst in good yield from readily available starting materials. The catalysts that may be synthesized are of the general formula n wherein: n M is ruthenium or osmium; n X and X 1 are independently any anionic ligand; n L and L 1 are any neutral electron donor ligand; and, n R and R 1 are each hydrogen or one of the following substituent groups: C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, C 1 -C 20 alkyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 2 -C 20 alkoxycarbonyl, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl and C 1 -C 20 alkylsulfinyl. Optionally, the substituent group may be substituted with one or more groups selected from C 1 -C 5 alkyl, halogen, C 1 -C 5 alkoxy, and aryl. When the substitute aryl group is phenyl, it may be further substituted with one or more groups selected from a halogen, a C 1 -C 5 alkyl, or a C 1 -C 5 alkoxy. Specific synthetic protocols for vinyl alkylidene catalysts wherein R is hydrogen and R 1 is —CHCR 12 R 13 and non-vinyl alkylidene catalysts are also disclosed. In addition to the ease of synthesis (typically a one-step synthesis), the reactions generally may be run at or above room temperature and the resulting products usually may be used without extensive post synthesis purification.

专利号:US-9446995-B2
优先权日:2012-05-21
标 题:Synthesis of therapeutic and diagnostic drugs centered on regioselective and stereoselective ring opening of aziridinium ions
发明人：CHONG HYUN-SOON
权利人:CHONG HYUN-SOON; ILLINOIS INST OF TECH
摘要:Stereoselective and regioselective synthesis of compounds via nucleophilic ring opening reactions of aziridinium ions for use in stereoselective and regioselective synthesis of therapeutic and diagnostic compounds.

专利号:US-10189803-B2
优先权日:2008-02-22
标题 :Synthesis of therapeutic and diagnostic drugs centered on regioselective and stereoselective ring opening of aziridinium ions
发明人：CHONG HYUN-SOON
权利人:CHONG HYUN SOON; ILLINOIS INSTITUTE OF TECH
摘要:Stereoselective and regioselective synthesis of compounds via nucleophilic ring opening reactions of aziridinium ions for use in stereoselective and regioselective synthesis of therapeutic and diagnostic compounds.

专利号:US-6794534-B2
优先权日:2000-06-23
标题:Synthesis of functionalized and unfunctionalized olefins via cross and ring-closing metathesis
发明人：GRUBBS ROBERT H; CHATTERJEE ARNAB K; MORGAN JOHN P; SCHOLL MATTHIAS; CHOI TAE-LIM
权利人:CALIFORNIA INST OF TECHN
摘要:The invention is directed to the cross-metathesis and ring-closing metathesis reactions between geminal disubstituted olefins and terminal olefins, wherein the reaction employs a Ruthenium or Osmium metal carbene complex. Specifically, the invention relates to the synthesis of α-functionalized or unfunctionalized olefins via intermolecular cross-metathesis and intramolecular ring-closing metathesis using a ruthenium alkylidene complex. The catalysts preferably used in the invention are of the general formula n wherein: n M is ruthenium or osmium; n X and X 1 are each independently an anionic ligand; n L is a neutral electron donor ligand; and, n R, R 1 R 6 , R 7 , R 8 , and R 9 are each independently hydrogen or a substituent selected from the group consisting of C 1 -C 20 alkyl, C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, aryl, C 1 -C 20 carboxylate, C 1 -C 20 alkoxy, C 2 -C 20 alkenyloxy, C 2 -C 20 alkynyloxy, aryloxy, C 2 -C 20 alkoxycarbonyl, C 1 -C 20 alkylthio, C 1 -C 20 alkylsulfonyl and C 1 -C 20 alkylsulfinyl.

专利号:US-6924385-B2
优先权日:2002-11-18
标 题:Method for synthesis of aliphatic isocyanates from aromatic isocyanates
发明人：LETTMANN CHRISTIAN; KOHLSTRUK STEPHAN; STOCHNIOL GUIDO; SPYROU EMMANOUIL
权利人:DEGUSSA
摘要:The invention relates to a method for synthesis of aliphatic isocyanates from aromatic isocyanates in substantially 3 stages. In particular, the invention relates to a method for synthesis of bis{4-isocyanatocyclohexyl}methane (H 12 MDI) from bis{4-isocyanatophenyl}methane (MDI). More especially, the invention relates to a method for synthesis of H 12 MDI with a trans-trans isomer content of <30%, preferably of <20%, particularly preferably of 5 to 15%.

专利号:WO-9517903-A1
优先权日:1993-12-28
标 题:Modular design and synthesis of oxazolone-derived molecules
发明人：HOGAN JOSEPH C JR; CASEBIER DAVID; FURTH PAUL; TU CHENG
权利人:ARQULE PARTNERS L P; HOGAN JOSEPH C JR; CASEBIER DAVID; FURTH PAUL; TU CHENG
摘要:The design and synthesis of novel oxazolone-derived molecular modules and the use of the modules in the construction of new molecules and fabricated materials is disclosed. The new molecules and fabricated materials are molecular recognition agents useful in the design and synthesis of drugs, and have applications in separations and materials science.