[EN] NON-PEPTIDE GNRH AGENTS, PHARMACEUTICAL COMPOSITIONS AND METHODS FOR THEIR USE [FR] AGENTS ANTI-GNRH NON PEPTIDIQUES, COMPOSITIONS PHARMACEUTIQUES ET PROCEDES D'UTILISATION
以氯化氢为氯化源,过氧化氢为氧化剂,水为溶剂,开发了一种有效的方法,将硫酸锰(Ⅱ)催化的苯酚选择性氧氯化为2,4-二氯苯酚。该催化剂在温和条件下具有高活性和选择性。产物自动从水溶液中分离出来,水溶液在反应结束时还含有催化剂,因此在该系统中,产物分离和催化剂回收都很简单。硫酸亚锰(II)在氧化氯化系统HCl / H 2 O 2中的性能表明,这是用于制造各种2,4-二氯苯酚衍生物的有前途的合成方法。
The reaction of aromatic ethers with a calculated amount of benzyltrimethylammonium tetrachloroiodate in acetic acid (or dichloromethane) under mild conditions gave, selectively, the objective chloro-substituted aromatic ethers in good yields.
芳香醚与计算量的四氯碘酸苄基三甲基铵在温和条件下反应,选择性地以良好的收率得到目标氯取代的芳香醚。
Hydrocarbon-Soluble Halogen and Thiolate/Magnesium Exchange Reagents
申请人:ALBEMARLE GERMANY GMBH
公开号:US20200239496A1
公开(公告)日:2020-07-30
The invention relates to hydrocarbon-soluble halogen or thiolate/magnesium exchange reagents of the general formula
R
1
MgR
1
1−n
(OR
3
)
n
·LiOR2·(1−n)LiOR
3
·aDonor
in which: R
1
is a C1-C8 alkyl and OR
2
as well as OR
3
are same or different and represent primary, secondary, or tertiary alkoxide residues having 3 to 18 carbon atoms, wherein R
2
and/or R
3
can for their part contain an alkoxy substituent OR
4
; a assumes a value of 0 to 2, n assumes a value between 0 and 1, and the donor is an organic molecule containing at least 2 nitrogen atoms.
Hydrocarbon-soluble halogen and thiolate/magnesium exchange reagents
申请人:ALBEMARLE GERMANY GMBH
公开号:US11236113B2
公开(公告)日:2022-02-01
The invention relates to hydrocarbon-soluble halogen or thiolate/magnesium exchange reagents of the general formula
R1MgR11-n(OR3)n.LiOR2.(1−n)LiOR3.aDonor
in which: R1 is a C1-C8 alkyl and OR2 as well as OR3 are same or different and represent primary, secondary, or tertiary alkoxide residues having 3 to 18 carbon atoms, wherein R2 and/or R3 can for their part contain an alkoxy substituent OR4; a assumes a value of 0 to 2, n assumes a value between 0 and 1, and the donor is an organic molecule containing at least 2 nitrogen atoms.