L-proline catalyzed solvent-free Knoevenagel condensation for the synthesis of 3-substituted coumarins

被引：62

作者：

Karade, Nandkishor N. ^{[1
]}

Gampawar, Sumit V.

Shinde, Sandeep V.

Jadhav, Wamanrao N.

机构：

[1] Swami Ramanand Teerth Marathwada Univ, Sch Chem Sci, Nanded 431606, Maharashtra, India

[2] Dnyanopasak Coll, Parbhani 431401, Maharashtra, India

来源：

CHINESE JOURNAL OF CHEMISTRY | 2007年 / 25卷 / 11期

关键词：

Knoevenagel condensation; coumarin; salicylaldehyde; L-proline; beta-ketoester; solvent-free synthesis;

D O I：

10.1002/cjoc.200790311

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

L-Proline was utilized as an efficient organo-catalyst for the environmentally benign synthesis of 3-substituted. coumarins by the Knoevenagel condensation of substituted 2-hydroxybenzaldehydes with reactive methylene compounds under solvent free conditions.

引用

页码：1686 / 1689

页数：4

共 45 条

[1]

[Anonymous], 1875, J CHEM SOC, DOI DOI 10.1039/JS8752800010

[2]

[Anonymous], LASER DYES

[3] (S)-Proline as a neutral and efficient catalyst for the one-pot synthesis of tetrahydrobenzo[b]pyran derivatives in aqueous media [J].

Balalaie, S ;

Bararjanian, M ;

Amani, AM ;

Movassagh, B .

SYNLETT, 2006, (02) :263-266

[4] Solvent-free one-pot rapid synthesis of 3-carboxycoumarins using focused microwaves [J].

Bandgar, BP ;

Uppalla, LS ;

Kurule, DS .

GREEN CHEMISTRY, 1999, 1 (05) :243-245

[5] Montmorillonite KSF as an inorganic, water stable, and reusable catalyst for the knoevenagel synthesis of coumarin-3-carboxylic acids [J].

Bigi, F ;

Chesini, L ;

Maggi, R ;

Sartori, G .

JOURNAL OF ORGANIC CHEMISTRY, 1999, 64 (03) :1033-1035

[6] Coumarins: Fast synthesis by Knoevenagel condensation under microwave irradiation [J].

Bogdal, D .

JOURNAL OF CHEMICAL RESEARCH-S, 1998, (08) :468-469

[7]

Brufola G, 1996, HETEROCYCLES, V43, P1257

[8] Synthesis and antimicrobial activity of some derivatives of (7-hydroxy-2-oxo-2H-chromen-4-yl)-acetic acid hydrazide [J].

Cacic, M ;

Trkovnik, M ;

Cacic, F ;

Has-Schon, E .

MOLECULES, 2006, 11 (2-3) :134-147

[9] MICROWAVE-ASSISTED ORGANIC-REACTIONS [J].

CADDICK, S .

TETRAHEDRON, 1995, 51 (38) :10403-10432

[10] New synthesis of flavanones catalyzed by L-proline [J].

Chandrasekhar, S ;

Vijeender, K ;

Reddy, KV .

TETRAHEDRON LETTERS, 2005, 46 (41) :6991-6993

← 1 2 3 4 5 →