CAS: 25260-60-0; (Z)-But-2-Ene-1,4-Diyl Diacetate

相似化合物

821-11-4 110-64-5 141-05-9

上下游产品

CAS号6117-80-2 顺-2-丁烯-1,4-二醇 | CAS号108-24-7 乙酸酐 | CAS号75-36-5 乙酰氯 | CAS号591-87-7 乙酸烯丙酯 | CAS号141-78-6 乙酸乙酯 | CAS号1573-17-7 1,4-二乙酰氧基-2-丁炔 | CAS号72900-28-8 2-((Z)-4-(tetra... | CAS号62585-60-8 1,4-bis(methoxy... | CAS号64-19-7 冰醋酸 | CAS号106-99-0 丁二烯 | CAS号4494-16-0 十八碳-9-烯酸 | CAS号101171-21-5 11-acetoxyundec... | CAS号68480-27-3 2-十一碳烯醋酸酯 | CAS号5557-31-3 9-十八烯 | CAS号1576-98-3 (E)-2-烯-1,4-二乙酸二丁酯 | CAS号18085-02-4 3,4-双乙酸基-1丁烯 | CAS号154033-18-8 5-ethenyl-3,3-d... | CAS号36215-15-3 (Z)-4-Phenyl-2-... | CAS号259268-91-2 acetic acid,4-p... | CAS号1142-21-8 (2Z)-1,4-Diphen...

📜顺式-1,2-二羟甲基乙烯 反应生成Cis-1,4-二乙酰氧基-2-丁烯
参考文献:Stereochemistry Of Additions To A Triple Bond
标题:Stereochemistry Of Additions To A Triple Bond
摘要:
Doi:10.1007/bf00903977

专利信息

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:WO-2009030733-A1
优先权日:2007-09-04
标 题 :Method for the synthesis of 4-alkoxy-, 4-hydroxy- and 4-aryloxy-substituted tetrahydro-furo[3,4-b]furan-2(3h)-one compounds
发明人：QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIO; HANBAUER MARTIN HELMUT FRIEDRICK
权利人:DSM IP ASSETS BV; QUAEDFLIEG PETER JAN LEONARD MARIO; ALSTERS PAULUS LAMBERTUS; STRAATMAN HENRICUS MARTINUS MARIA GERARDUS; HANBAUER MARTIN HELMUT FRIEDRI
摘要:The present invention relates to a method for the synthesis of enantiomerically and diastereomerically enriched 4-alkoxy-, 4-hydroxy- or 4-aryloxy- substituted tetrahydro-furo[3,4-b]furan-2(3H)-ones by aldol coupling of a suitable hydroxyl-protected hydroxy-acetaldehyde and 4-oxobutanoic acid or an ester thereof, and subsequent removal of the protecting group from the aldol compound and (optionally simultaneous) cyclizations and acetal formation under acidic conditions in the presence of an alcohol, followed by optional isolation of the desired compounds. The invention also relates to compounds according to formulae [Xl] and [XII].

专利号:US-9403854-B2
优先权日:2001-03-30
标 题 :Cross-metathesis reaction of functionalized and substituted olefins using group 8 transition metal carbene complexes as metathesis catalysts
发明人：GRUBBS ROBERT H; CHATTERJEE ARNAB K; CHOI TAE-LIM; GOLDBERG STEVEN D; LOVE JENNIFER A; MORGAN JOHN P; SANDERS DANIEL P; SCHOLL MATTHIAS; TOSTE F DEAN; TRNKA TINA M
权利人:CALIFORNIA INST OF TECHN
摘要:The invention pertains to the use of Group 8 transition metal carbene complexes as catalysts for olefin cross-metathesis reactions. In particular, ruthenium and osmium alkylidene complexes substituted with an N-heterocyclic carbene ligand are used to catalyze cross-metathesis reactions to provide a variety of substituted and functionalized olefins, including phosphonate-substituted olefins, directly halogenated olefins, 1,1,2-trisubstituted olefins, and quaternary allylic olefins. The invention further provides a method for creating functional diversity using the aforementioned complexes to catalyze cross-metathesis reactions of a first olefinic reactant, which may or may not be substituted with a functional group, with each of a plurality of different olefinic reactants, which may or may not be substituted with functional groups, to give a plurality of structurally distinct olefinic products. The methodology of the invention is also useful in facilitating the stereoselective synthesis of 1,2-disubstituted olefins in the cis configuration.

专利号:US-12098115-B2
优先权日:2016-09-15
标 题:Methods and compositions for terpenoid synthesis
发明人：GRENNING ALEXANDER JAMES
权利人:UNIV FLORIDA
摘要:In one aspect, the disclosure relates to methods for preparation of terpene and terpene-like molecules. In a further aspect, the disclosure relates to the products of the disclosed methods, i.e., terpene and terpene-like molecules prepared using the disclosed methods. Intermediates for the synthesis of a wide variety of terpenoids are γ-allyl Knoevenagel adducts or quasi γ-allyl Knoevenagel adducts are disclosed. In various aspects, methods of preparing terpenoids through these intermediates are disclosed. The methods can comprise α-alkylation of an allylic electrophile followed by ring-closure metathesis to a polycyclic terpenoid structure. In a further aspect, the disclosure pertains to terpenoid frameworks, and compounds prepared via disclosed oxidation and substitution reactions on the disclosed terpenoid frameworks. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

专利号:US-11365211-B2
优先权日:2018-02-01
标 题 :Stereoselective synthesis and process for the manufacturing of 2′-deoxynucleosides
发明人：ZHANG LIANHAO; VISHNUVAJJALA BABURAO; MORRIS JOEL; BAHDE ROBERT; DENYSENKO SERGIY M; LOPEZ OMAR DIEGO; WISHKA DONN GREGORY
权利人:THE USA AS REPRESENTED BY THE SEC DEP OF HEALTH AND HUMAN SERVICES; ALCHEM LABORATORIES CORP; US HEALTH
摘要:Methods for stereoselective synthesis and manufacturing of 2′-deoxynucleosides, such as 2′-ribonucleosides, are disclosed. In some embodiments, the 2′-deoxynucleoside is a β-anomer of a 2′-deoxynucleoside having a 3′ α hydroxyl, 4′ β hydroxymethyl configuration. Nonlimiting examples of compounds prepared by the disclosed methods include 4′-thio-2′-deoxycytidine (T-dCyd) and 5-aza-4′-thio-2′-deoxycytidine (5-aza-T-dCyd; aza-T-dCyd; aza-T-dC).

专利号:US-5969170-A
优先权日:1992-04-03
标 题:High activity ruthenium and osmium metal carbene complexes for olefin metathesis reactions
发明人：GRUBBS ROBERT H; NGUYEN SONBINH T; JOHNSON LYNDA K
权利人:CALIFORNIA INST OF TECHN
摘要:Disclosed are ruthenium and osmium carbene compounds which are stable in the presence of a variety of functional groups and which can be used to catalyze olefin metathesis reactions on strained and unstrained cyclic and acyclic olefins. Specifically, the present invention relates to carbene compounds of the formula ##STR1## wherein: M is Os or Ru; R and R 1 are independently selected from hydrogen and substituent groups C 2 -C 20 alkenyl, C 2 -C 20 alkynyl, C 1 -C 20 alkyl, aryl, C 1 -C 20 carboxylate, C 2 -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 or C 1 -C 20 alkylsulfinyl; each substituent group optionally substituted with C 1 -C 5 alkyl, a halogen, C 1 -C 5 alkoxy or with a phenyl group optionally substituted with a halogen, C 1 -C 5 alkyl or C 1 -C 5 alkoxy; X and X 1 are independently selected from any anionic ligand; and L and L 1 are each trialkyl phosphine ligands where at least one of the alkyl groups on the phosphine is a secondary alkyl or a cycloalkyl. A broad array of metathesis reactions are enabled including ring-opening metathesis polymerization of cyclic olefins, ring closing metathesis of acyclic dienes, cross metathesis involving at least one acyclic or unstrained cyclic olefin, depolymerization of unsaturated polymers and synthesis of telechelic polymers.