A new bench stable reagent that is easily synthesized and handled is investigated for its use in radical prenylation of diverse organic molecules. It has demonstrated high functional group compatibility and can be used with numerous photocatalytic methods to give prenylated products from aryl iodides, bromides, anilines, thiols and alkyl halides.
An efficient dehydrogenative Diels–Alderreaction of prenyl derivatives with dienophiles has been developed. The reaction exhibits broad substrate scope and provides efficient access to cyclohexene derivatives with good to excellent yields. A reasonable mechanism involving a metal-free thermal reversible process is proposed.
A metal‐free dehydrogenative Diels‐Alderreaction of substituted alkenes for the synthesis of tetrahydroisoindolinones has been exploited for the first time. This new method features functional group tolerance and broad substrate scope, providing an efficient access to biologically active tetrahydroisoindolinone skeletons with endo steroselectivity in good to excellent yields.
OXATHIAZINE DERIVATIVES WHICH ARE SUBSTITUTED WITH BENZYL OR HETEROMETHYLENE GROUPS, METHOD FOR PRODUCING THEM, THEIR USE AS MEDICINE AND DRUG CONTAINING SAID DERIVATIVES AND THE USE THEREOF
申请人:Boehme Thomas
公开号:US20140066437A1
公开(公告)日:2014-03-06
The invention relates to the compounds of formula (I) and to the physiologically acceptable salts thereof. Said compounds are suitable e.g. for the treatment of hyperglycemia.
该发明涉及式(I)的化合物及其生理上可接受的盐。所述化合物适用于治疗高血糖等。
Copper(I)/DDQ-Mediated Double-Dehydrogenative Diels–Alder Reaction of Aryl Butenes with 1,4-Diketones and Indolones
A copper(I)/DDQ-mediated double-dehydrogenative Diels–Alder (DDDA) reaction of simple butenes with 1,4-diketones and indolones has been established for the first time. This strategy is based on a tandem double-dehydrogenation/Diels–Alderreaction from nonprefunctionalized starting materials, in which both a diene and dienophile were in situgenerated via activation of fourfold inert C(sp3)–H bonds