A new synthesis of acetamido phenols promoted by Ce(SO4)2
摘要:
A new method for the synthesis of acetamido phenols by a one-pot, three-component Ritter type reaction in moderate to good yields is described. Both electron donating and electron releasing substitution on aromatic rings are tolerated. (c) 2006 Elsevier Ltd. All rights reserved.
An elastomer, a process for forming an elastomer, and an article of manufacture are disclosed. The elastomer comprises a phosphazene backbone and at least one polyhexahydrotriazine component. The process for forming the elastomer includes obtaining an amine-terminated cyclotriphosphazene, reacting it with a diamine to form a phosphazene-containing PHT polymer, and then reacting the phosphazene-containing PHT polymer with a side-chain modified cyclic phosphazene to form a PCPHT elastomer with halogen ligands. The PCPHT elastomer with halogen ligands is then reacted with an alkoxide to form a PCPHT elastomer with at least one ether-linked side chain. The article of manufacture comprises a material comprising an elastomer having a phosphazene backbone and at least one PHT component.
A new synthesis of acetamido phenols promoted by Ce(SO4)2
作者:Nagarajan Panneer Selvam、Paramasivan T. Perumal
DOI:10.1016/j.tetlet.2006.08.038
日期:2006.10
A new method for the synthesis of acetamido phenols by a one-pot, three-component Ritter type reaction in moderate to good yields is described. Both electron donating and electron releasing substitution on aromatic rings are tolerated. (c) 2006 Elsevier Ltd. All rights reserved.
An elastomer, a process for forming an elastomer, and an article of manufacture are disclosed. The elastomer comprises a phosphazene backbone and at least one polyhexahydrotriazine component. The process for forming the elastomer includes obtaining an amine-terminated cyclotriphosphazene, reacting it with a diamine to form a phosphazene-containing PHT polymer, and then reacting the phosphazene-containing PHT polymer with a side-chain modified cyclic phosphazene to form a PCPHT elastomer with halogen ligands. The PCPHT elastomer with halogen ligands is then reacted with an alkoxide to form a PCPHT elastomer with at least one ether-linked side chain. The article of manufacture comprises a material comprising an elastomer having a phosphazene backbone and at least one PHT component.
A simple and efficient method for the synthesis of amidophenols using iodine as catalyst under neat condition
作者:Nagarajan Panneer Selvam、Paramasivan T. Perumal
DOI:10.1016/j.tet.2008.01.075
日期:2008.3
A convenient and efficient one-pot synthesis of substituted amidophenols using iodine as catalyst at room temperature under neat condition is described. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis of highly functionalized oxazines by Vilsmeier cyclization of amidoalkyl naphthols
作者:M. Damodiran、N. Panneer Selvam、Paramasivan T. Perumal
DOI:10.1016/j.tetlet.2009.07.051
日期:2009.9
The intramolecular cyclization of amidoalkyl naphthols by Vilsmeierreagent produced 1,3-oxazines. The Vilsmeierreagent (chloromethylenedimethylammonium chloride) has been used as an efficient and cheap acid activator for the one-stepsynthesis of oxazine derivatives. A mechanism involving sequential haloformylation and intramolecular nucleophilic cyclization is proposed.