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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

CHEMOSELECTIVE CONDENSATIONOF beta-NAPHTHOL, DIMETHYL MALONATE, ANDAROMATIC ALDEHYDES PROMOTED BY NIOBIUM PENTACHLORIDE

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Author(s):
Bartolomeu, Aloisio de Andrade [1] ; de Menezes, Manoel Lima [1] ; da Silva-Filho, Luiz Carlos [1]
Total Authors: 3
Affiliation:
[1] Sao Paulo State Univ UNESP, Dept Chem, Lab Organ Synth & Proc LaOSP, Fac Sci, BR-17033360 Sao Paulo - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Synthetic Communications; v. 45, n. 9, p. 1114-1126, 2015.
Web of Science Citations: 9
Abstract

A multicomponent reaction of -naphthol, dimethyl malonate, and aromatic aldehydes in the presence of NbCl5 as promoter is described. Under similar conditions, aromatic aldehydes with different substituents exhibited different behaviors than -naphthol and dimethyl malonate. In these MCRs, 4-aryl-3,4-dihydrobenzo{[}f]coumarins are obtained as the major products (41-93%) and 14-aryl-14H-dibenzo{[}a,j]xanthenes as the minor products (1-38%). (AU)

FAPESP's process: 13/08697-0 - Studies about the use niobium pentachloride in multicomponent reactions toward the synthesis of dye-sensitizers with potential application in photoelectrochemical devices of Grätzel
Grantee:Luiz Carlos da Silva Filho
Support Opportunities: Regular Research Grants
FAPESP's process: 12/23821-7 - Synthesis of 14-Aryl-14H-dibenzo[a,j]xanthenes and 4-Aryl-3,4-dihydro-benzo[f]coumarins promoted by niobium pentachloride, with potential application in the preparation of dyes-sensitizers for use in Grätzel devices.
Grantee:Aloisio de Andrade Bartolomeu
Support Opportunities: Scholarships in Brazil - Master