CAS: 154970-45-3; Tert-Butyl Bicyclo[2.2.1]-5-Heptene-2-Carboxylate

相似化合物

120-74-1 10138-32-6 6203-08-3

上下游产品

CAS号75-65-0 叔丁醇 | CAS号1663-39-4 丙烯酸叔丁酯 | CAS号542-92-7 环戊二烯

二聚环戊二烯置于lewis Acid体系中,用 二氯甲烷 用作溶剂,化学反应生成5-降冰片烯-2-羧酸叔丁酯
参考文献:Oxathiaborolium催化的对映选择性[4+2]环加成及其在路易斯酸配位和手性路易斯酸催化的[4+2]环加成反应中的应用
标题:Oxathiaborolium催化的对映选择性[4+2]环加成及其在路易斯酸配位和手性路易斯酸催化的[4+2]环加成反应中的应用
摘要:由嗜盐路易斯酸 Sncl 4产生的第二代硫稳定化硼阳离子的新生产生了高活性的手性路易斯酸,它是 [4 + 2] 环加成的非常有效的催化剂.Oxathiaborolium 五氯锡酸盐(5-10 Mol%)成功地催化了各种二烯和亲二烯体的环加成反应,得到了具有优异对映选择性的环加合物(20 个例子,高达 99% Ee).这种超级路易斯酸对第一个路易斯酸配位和手性路易斯酸催化[4 + 2]环加成到α,β-不饱和混合酯酰胺也表现出非常好的对映选择性.
Doi:10.1021/acs.Orglett.1C02345

专利信息

专利号:US-2019298851-A1
优先权日:2016-06-01
标 题:Sequential click reactions for the synthesis and functionalization of hydrogel microspheres and substrates
发明人：ALGE DANIEL L; JIVAN FARAZ; YEGAPPAN RAMANATHAN; DODSON COLIN R
权利人:TEXAS A & M UNIV SYS
摘要:The present disclosure describes two click reactions to sequentially polymerize and then functionalize hydrogel microparticles to provide therapeutic agent-functionalized crosslinked hydrogel microparticles. The two click reactions have one common reactive group, and are non-interfering with respect to one another. The therapeutic agents can be released from the hydrogel microparticles over time as the hydrogel degrades, or the therapeutic agents can be released from the hydrogel microparticles by enzymatic degradation or hydrolysis. In some embodiments, the biological function of the therapeutic agents can be preserved or enhanced when covalently bound to the hydrogel microparticles. The present disclosure also provides methods for the production of hydrogel cell culture substrates. The methods overcome the hurdle of protein functionalization through the implementation of an advanced but simple chemical strategy that involves modifying a protein of interest with chemical groups (e.g., tetrazines) that are able to react with complementary chemical groups (e.g., norbornenes) immobilized within a mechanically-tunable hydrogel.

专利号:US-6608158-B2
优先权日:1997-12-29
标 题 :Copolymer resin, preparation thereof, and photoresist using the same
发明人：JUNG MIN HO; JUNG JAE CHANG; BOK CHEOL KYU; BAIK KI HO
权利人:HYUNDAI ELECTRONICS IND
摘要:The present invention relates to a copolymer resin for a photoresist used in far ultraviolet ray such as KrF or ArF, process for preparation thereof, and photoresist comprising the same resin. The copolymer resin according to the present invention is easily prepared by conventional radical polymerization due to the introduction of mono-methyl cis-5-norbonen-endo-2,3-dicarboxylate unit to a structure of norbornene-maleic anhydride copolymer for photoresist. The resin has high transparency at 193 nm wavelength, provides increased etching resistance and settles the problem of offensive odor occurred in the course of copolymer resin synthesis. Further, as the resin composition can be easily controlled due to the molecular structure, the resin can be manufactured in a large scale.

专利号:CN-115340441-B
优先权日:2021-05-12
标 题:Synthesis method of chiral cyclobutyl alcohol compound, chiral cyclobutyl alcohol and application