53911-82-3Relevant academic research and scientific papers
Rhodium-catalyzed enamine homologation of sulfides with triazoles as carbene precursor
Li, Fang,Pei, Chao,Koenigs, Rene M.
, p. 6816 - 6821 (2020)
We report on Rh(II)-catalyzed enamine homologation reactions of triazoles with cyclopropylmethyl sulfides. This reaction proceeds via Dimroth rearrangement of triazoles followed by rhodium-catalyzed ylide formation. This ylide, however, does not undergo classic rearrangement reactions. Instead, it undergoes a selective, intramolecular alkylation reaction to yield cyclopropylmethyl-substituted enamides. The application of this reaction was evaluated with different triazoles and sulfides, which underline the special reactivity of cyclopropylmethyl sulfides (29 examples, up to 83% yield).
ROR GAMMA (RORY) MODULATORS
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Page/Page column 23-24; 33, (2015/06/18)
The present invention relates to compounds according to Formula I: Wherein: A11 - A14 are N or CR11, CR12, CR13, CR14, respectively, with the proviso that no more than two of the four positions A can be simultaneously N; R1 is C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1 -3)alkyl, (di)C(1-6)alkylamino, (di)C(3-6)cycloalkylamino or (di)(C(3-6)cycloalkylC(1 -3)alkyl)amino, with all carbon atoms of alkyl groups optionally substituted with one or more F and all carbon atoms of cycloalkyl groups optionally substituted with one or more F or methyl; R2 and R3 are independently H, F, methyl, ethyl, hydroxy, methoxy or R2 and R3 together is carbonyl, all alkyl groups, if present, optionally being substituted with one or more F; R4 is H or C(1-6)alkyl; R5 is H, hydroxyethyl, methoxyethyl, C(1-6)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1 -9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1 -3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkylC(1-3)alkyl, all groups optionally substituted with one or more F, CI, C(1-2)alkyl, C(1-2)alkoxy or cyano; the sulfonyl group with R1 is represented by one of R7, R8 or R9; the remaining R6-RH are independently H, halogen, C(1-3)alkoxy, (di)C(1-3)alkylamino or C(1-6)alkyl, all of the alkyl groups optionally being substituted with one or more F; and Ri5 and Ri6 are independently H, C(1-6)alkyl, C(3-6)cycloalkyl, C(3-6)cycloalkylC(1-3)alkyl, C(6-10)aryl, C(6-10)arylC(1-3)alkyl, C(1-9)heteroaryl, C(1-9)heteroarylC(1-3)alkyl, C(2-5)heterocycloalkyl or C(2-5)heterocycloalkylC(1-3)alkyl, all groups optionally substituted with one or more F, CI, C(1-2)alkyl, C(1-2)alkoxy or cyano. The compounds can be used as inhibitors of RORy and are useful for the treatment of RORy mediated diseases.
Mode of alkylation of alcohols with O-cyclopropylmethyl trichloroacetimidate and O-cyclobutyl trichloroacetimidate
Ali, Ibrahim A.I.,Zhu, Xiangming,El Ashry, El Sayed H.,Schmidta, Richard R.
experimental part, p. 35 - 44 (2012/03/09)
Acid promoted alkylation of hydroxy group containing acceptors 3-14 with O-cyclopropylmethyl and O-cyclobutyl trichloroacetimidates 1 and 2, respectively, afforded ethers with cyclopropylmethyl, cyclobutyl, and homoallyl residues as a result of the rearrangement of the cation intermediates. The dependence of product formation on acceptor structure is discussed. ARKAT-USA, Inc.
Surprisingly facile addition of thiols to the double bonds of bicyclopropylidene and other methylenecyclopropanes
Kozhushkov, Sergei I.,Brandl, Melanie,De Meijere, Armin
, p. 1535 - 1542 (2007/10/03)
The addition of thiols 8a-h onto the double bonds of bicyclopropylidene (1) and methylenespiropentane (2) proceeds quantitatively in benzene at 20 to 75 °C in the absence of catalysts or radical initiators to give products 9, 10 with complete retention of
