CAS: 285-67-6; 1,2-Epoxycyclopentane

相似化合物

175672-65-8 74017-10-0 16240-42-9

上下游产品

CAS号142-29-0 环戊烯 | CAS号5057-99-8 (+/-)-反式-1,2-环戊二醇 | CAS号62820-00-2 Benzonitrile,4-... | CAS号75-91-2 叔丁基过氧化氢 | CAS号628-92-2 环庚烯 | CAS号359-48-8 Peroxytrifluoro... | CAS号334538-40-8 3,3-(α-hydroxyt... | CAS号69578-06-9 2-chlor°Cyclope... | CAS号3212-60-0 环戊-2-烯醇 | CAS号142052-70-8 2-propan-2-ylox... | CAS号5057-99-8 (+/-)-反式-1,2-环戊二醇 | CAS号5057-98-7 顺式-1,2-环戊二醇 | CAS号22022-30-6 2-乙炔基环戊醇 | CAS号20461-31-8 2-methylidenecy... | CAS号179737-87-2 6-phenyl-6-azab... | CAS号822-67-3 2-环己烯-1-醇 | CAS号77-73-6 二聚环戊二烯 | CAS号96-41-3 环戊醇

(+/-)-反-1,2-环戊二醇置于苄基三乙基溴化铵 Sodium Hydroxide,对甲苯磺酰氯体系中,用 二氯甲烷 用作溶剂,化学反应 0.17H,以71%的收率获得1,2-环氧环戊烷
参考文献:Phase Transfer-Catalyzed Preparation Of Oxiranes
标题:Phase Transfer-Catalyzed Preparation Of Oxiranes
摘要:在相转移条件下,用一摩尔当量的对甲苯磺酰氯(2)或甲烷磺酰氯(2')处理 1.2-二醇 1,可制备出产率为 70-85% 的环氧乙烷 3.
Doi:10.1055/s-1985-31416

专利信息

专利号:WO-2023152730-A1
优先权日:2022-02-14
标题 :Amine-borane adducts in the synthesis of polyester and its copolymers using cyclic esters and compositions thereof
发明人：FENG XIAOSHUANG; LIU JINGJING; GNANOU YVES
权利人:UNIV KING ABDULLAH SCI & TECH
摘要:Embodiments of the present disclosure provide for the process of synthesis of polyester and its copolymers through (co)polymerization of cyclic esters and with other oxygenated monomers using amine-borane adduct. Embodiments of the present disclosure further describe the controlled anionic ring-opening polymerization of the cyclic compounds. Embodiments of the present disclosure also describe the polymerization of cyclic compounds using the synergistic effect of amines and thioureas. Embodiments of the present disclosure also describe compositions of polymers formed by the said process.

专利号:US-11753503-B2
优先权日:2018-05-17
标 题:Supported onium salts as initiators for the synthesis of polycarbonates by copolymerization of CO2 with epoxides
发明人：FENG XIAOSHUANG; PATIL NAGANATHA; LUCIANI CAROLINE; GNANOU YVES; HADJICHRISTIDIS NIKOS
权利人:UNIV KING ABDULLAH SCI & TECH
摘要:Supported onium salts used as initiators for the synthesis of polycarbonates by copolymerization of carbon dioxide with epoxides are described. Embodiments of the present disclosure describe initiators comprising an insoluble portion including an onium cation attached to an insoluble support; and an anion, wherein the anion is a counter-ion to the onium cation. Embodiments further describe methods of making polycarbonates using the initiator, methods of making initiators, and the like.

专利号:WO-2008101515-A1
优先权日:2007-02-22
标 题:New synthons for the synthesis of chiral peptide nucleic acids and methods for preparing the same
发明人：BIONDI FABIO
权利人:NANODREAM S R L UNIPERSONALE; BIONDI FABIO
摘要:Novel l-acyl-3-amino-4-hydroxymethylpyiÏ„olidine derivatives useful as PNA synthons optionally having protecting groups suitable of removal under mild conditions are disclosed having the formula (E) wherein: R1 is H or R-C(=O), wherein R is straight or branched alkyl, aryl, substituted aryl including from 1 to 5 heteroatoms, a heterocyclic group including from 1 to 3 heteroatoms; R2 is H, a linker bonded to a solid support, or R6-0-C(=0), wherein R6 is an alkyl or substituted alkyl group having a tertiary carbon atom bonded to the oxygen, CHn-Arm-n wherein n is 1 or 2 and m is 2 or 3 and Ar is aryl or substituted aryl, and R3 is a nucleobase selected from thymine I, cytosine II, adenine III, guanine IV, uracil V, xanthine VI and hypoxanthine VII, a derivative of said nucleobases I-VII protected at the reactive functionalities NH2 or imidic NH, a deazacarbocyclic derivative of said nucleobases I-VII optionally protected at the reactive functionality NH2. Also disclosed are novel intermediates useful for the preparation of the aforementioned PNA synthons, as well as to methods for preparing the intermediates and the final synthons. The latter can be useful in the synthesis of peptide nucleic acids (PNAs) and other oligomers such as PNA-DNA chimeras, and may be used in automated synthesizers.

专利号:US-11292873-B2
优先权日:2013-11-05
标 题 :Etheramines prepared from a mixture of two or more multifunctional alcohol initiators, and their use as curatives or intermediates for polymer synthesis
发明人：ZHOU HUI; LEWIS DAVID C; KLEIN HOWARD P; RENKEN TERRY L; PATTERSON LEAH
权利人:HUNTSMAN PETROCHEMICAL LLC
摘要:Implementations described herein generally relate to etheramine mixtures formed from a mixture of two or more multifunctional alcohol initiators, processes for the etheramine mixtures production, and its use as a curing agent or as a raw material in the synthesis of polymers. In one implementation, the process comprises mixing a polyol initiator having a melting point greater than a processing temperature and a polyol initiator having a melting point less than the processing temperature to form a polyol initiator mixture having a melting point less than the processing temperature, charging the polyol initiator mixture to an alkoxylation reaction zone, contacting the polyol initiator mixture with an alkylene oxide in the alkoxylation reaction zone to provide a mixture of alkoxylated precursor polyols and charging the mixture of alkoxylated precursor polyols to a reductive amination zone and reductively aminating the mixture of alkoxylated precursor polyols to form the etheramine mixture.

专利号:US-5906954-A
优先权日:1998-10-13
标 题 :Removal of titanium atoms from titanium silicate molecular sieves
发明人：KOERMER GERALD S
权利人:ENGELHARD CORP
摘要:This invention relates to the preparation of novel titanium silicate molecular sieves with modified properties such as adsorption, ion-exchange and catalytic behavior by selective extraction of framework titanium atoms after synthesis of the sieves.

专利号:US-4331688-A
优先权日:1978-02-23
标题 :Therapeutic method for inhibiting gastric secretion by administration of 15-deoxy-16-hydroxy prostaglandins
发明人：KLUENDER HAROLD C; WOESSNER WARREN D; BIDDLECOM WILLIAM G
权利人:MILES LAB
摘要:Analogues of PGE 1 having the structural formula, ##STR1## in which J is R-hydroxymethylene or S-hydroxymethylene; R 1 is hydrogen; R 2 is hydrogen or together with R 4 is a methylene chain of 2 to 3 carbon atoms such that a cycloalkyl of 5 to 6 carbon atoms inclusive is formed; R 3 is hydrogen or methyl, or together with R 4 is a methylene or a lower alkylated methylene chain of 2 to 5 carbon atoms such that a cycloalkyl or a lower alkylated cycloalkyl of 4 to 7 carbon atoms inclusive is formed, or together with R 4 is bicycloalkyl or bicycloalkenyl moiety having the formula: ##STR2## such that a bicycloalkyl or bicycloalkenyl compound is formed, wherein m and n are integers having a value from 0 to 3, p is an integer having a value from 0 to 4 and q is an integer having a value of from 1 to 4 and wherein the double bond of such bicycloalkenyl is in the m, n, p, or q bridge; R 4 is hydrogen or methyl or together with R 2 or R 3 forms a cycloalkyl or bicycloalkyl or bicycloalkenyl as defined above, or together with R 5 is a methylene chain of 3 to 5 carbon atoms such that a cycloalkyl of 4 to 6 carbon atoms inclusive is formed; R 5 is selected from the group consisting of hydrogen, straight-chain alkyl having from 1 to 3 carbon atoms or together with R 4 forms a cycloalkyl as defined above; and R 6 is hydrogen or straight-chain alkyl having from 1 to 3 carbon atoms are disclosed. n PGE 1 ester analogues of the above formula, limited to the structures wherein two of R 2 , R 3 R 4 and R 5 form a cycloalkyl, lower alkylated cycloalkyl, bicycloalkyl or bicycloalkenyl are also disclosed. n The prostaglandin analogues selectively produce bronchodilation and decrease gastric secretion in vivo. n Methods of preparing the analogues and starting materials required in the synthesis of the analogues are also disclosed.