Oussaid A, Thach LN, Loupy A (1997) Tetrahedron Lett 38:2451Loupy A, Quassaid A, Thach LN (1997) Selective dalkylations of alkyl aryl ethers in heterogeneous basic media under microwave irradiation. Tetrahedron Lett 38:2451–2454Oussaid A, Le Ngoc T, Loupy A (1997) Tetrahedron Lett 38...
Selective dealkylations of aryl alkyl ethers and thioethers by sodium in HMPA On the contrary, in the asymmetric terms, the positional selectivity of the dealkylation process is governed by the basicity of the aryloxy anion. On the basis of these concepts several efficient and synthetically useful...
摘要: A mild and efficient procedure is described for the N-debenzylation of tertiary amines using α-chloroethyl chloroformate. The scope and selectivity are also discussed.关键词: alkylation, arylation, dealkylation, dearylation, C‐acylation, olefination pyridine derivatives ...
(59) were also suitable coupling partners, even though theE/Zselectivity was diminished. Importantly, functional groups that are typically sensitive to transition-metal catalysis, such as alkyl bromides (23and30), alkenes (38), alkynes (39) and aryl iodides (52), were all well tolerated, ...
Dealkylation of alkyl aryl ethers has been extensively explored. In comparison to the reported methods, selective methods that work under mild reaction conditions remain to be developed. Herein we report the development of a method that is selective, dealkylating only one of the methyl groups in ...
ChemInform Abstract: Selective Dealkylations of Alkyl Aryl Ethers in Heterogeneous Basic Media under Microwave Irradiation.phenol ethersmicrowave chemistry, sonochemistry, mechanochemistryalkylation, arylation, dealkylation, dearylation, C-acylation, olefination...
The dealkylation of aryl alkyl ethers is achieved by treatment with NaOtBu in DMSO.doi:10.1002/chin.201608085Zhang, Ming-XinHu, Xu-HongXu, Yun-HeLoh, Teck-PengJohn Wiley & Sons, Ltd.ChemInformZhang, M.-X., Hu, X.-H., Xu, Y.-H. & Loh, T.-P. Selective dealkylation of alkyl ...
Explores a mild, selective combination reagent for the cleavage of primary alkyl aryl ethers. Preparation of boron trichloride/tetra-n-butylammonium iodide; Dealkylation of a variety of substrates; Cleavage of methyl-, ethyl- and benzylnaphthyl ethers; Dissociation to provide oxonium ion activation....
With bis- and tris(alkoxy)benzenes which for symmetry reasons can afford aryloxy anions having the same basicity, the dealkylation involves exclusively the less substituted alkyl group. On the contrary, in the asymmetric terms, the positional selectivity of the dealkylation process is governed by ...
Marcello Tiecco.Selective Dealkylations of Aryl Alkyl Ethers, Thioethers, and Selenoethers[J]. Synthesis .1988(10)Tiecco M., Selective Dealkylations of Aryl Alkyl Ethers, Thioethers, and Selenoethers, Synthesis, 749- 759 (1988)Tiecco M.Selective Dealkylations of Aryl Alkyl Ethers, Thioethers...