The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-Bromo-2-pentyne, is researched, Molecular C5H7Br, CAS is 16400-32-1, about Diastereoselective synthesis of hexahydropyrrolo[2,1-a]isoquinolines by [3+2] cycloaddition and cyclative Heck alkyne hydroarylation, the main research direction is hexahydropyrroloisoquinoline preparation diastereoselective; dioxooctahydropyrrolopyrrole preparation reductive Heck cyclization; aryl aldehyde maleimide acid amino ester cycloaddition propargyl bromide.Application of 16400-32-1.
Intermediates generated from three-component [3+2] cycloaddition of 2-bromo arylaldehydes such as 2-bromobenzaldehyde, 2-bromo-5-(trifluoromethyl)benzaldehyde, 2-bromonaphthalene-1-carbaldehyde, etc. and maleimides I (R = Me, Et, t-Bu, benzyl) with amino esters (Et 2-aminopropanoate hydrochloride) or amino acids (2-amino-2-methylpropanoic acid) underwent N-propargylation and reductive Heck cyclization to form pyrrolidinedione-fused hexahydropyrrolo[2,1-a]isoquinolines e.g., II.
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Reference:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics