Determination of the stereoisomer of korormicin from eight possible stereoisomers by total synthesis
作者:Yuichi Kobayashi、Yuji Nakayama、Shinya Yoshida
DOI:10.1016/s0040-4039(99)02319-9
日期:2000.2
Possible diastereoisomers of korormicin were synthesized in a stereoselective manner, and the absolute stereochemistry of natural korormicin was elucidated by comparison of the reported [α]D value with the measured ones.
Zhang, Zhi-Bo; Wang, Zhi-Min; Wang, Yu-Xiu, Journal of the Chemical Society. Perkin transactions I, 2000, # 1, p. 53 - 58
作者:Zhang, Zhi-Bo、Wang, Zhi-Min、Wang, Yu-Xiu、Liu, Huan-Quan、Lei, Gui-Xin、Shi, Min
DOI:——
日期:——
KRIVONOGOV V. P.; DRONOV V. I.; NIGMATULLINA R. F., XIMIYA GETEROTSIKL. SOEDIN., 1977, HO 12, 1622-1624
作者:KRIVONOGOV V. P.、 DRONOV V. I.、 NIGMATULLINA R. F.
DOI:——
日期:——
[EN] COPOLYMERS OF ETHYLENE AND/OR alpha-OLEFINS AND VICINALLY DISUBSTITUTED OLEFINS<br/>[FR] COPOLYMERES D'ETHYLENE ET/OU D'ALPHA-OLEFINES ET OLEFINES A DISUBSTITUTION VICINALE
申请人:EXXONMOBIL CHEM PATENTS INC
公开号:WO2004106394A1
公开(公告)日:2004-12-09
Substantially random ethylene and/or α-olefin copolymers containing units derived from vicinally disubstituted olefin monomers are described. The vicinally disubstituted olefin monomers may be represented by the generic formula (R1)CH=CH(R2), where R1 and R2 independently comprise hydrocarbyl or silyl-hydrocarbyl groups containing 1 or more carbon atoms, or may be linear, branched or cyclic substituted or unsubstituted hydrocarbyl groups having from 1-100 carbon atoms, or they may contain 30 or less carbon atoms. The copolymers may be prepared by coordination polymerization by means of contacting at least one vicinally disubstituted olefin monomer and ethylene and/or α-olefin, optionally with one or more other coordination polymerizable monomers, with a catalyst system comprising a monocyclopentadienyl heteroatom-containing Group 4 transition metal catalyst component.