Cu(OAc)2 catalyzed ultrasound assisted rapid synthesis of isocoumarin derivatives bearing 3-oxobutyl moiety at C-4 position

被引：6

作者：

Ramarao, Sidda ^{[1
,2
]}

Pothireddy, Mohanreddy ^{[3
]}

Venkateshwarlu, Rapolu ^{[1
,2
]}

Moturu, Krishna Murthy Vr ^{[1
,2
]}

Siddaiah, Vidavalur ^{[1
,2
]}

Dandela, Rambabu ^{[3
]}

Pal, Manojit ^{[4
]}

机构：

[1] Andhra Univ, Dept Organ Chem, Visakhapatnam 530003, Andhra Pradesh, India

[2] Andhra Univ, FDW, Visakhapatnam 530003, Andhra Pradesh, India

[3] Inst Chem Technol, Dept Ind & Engn Chem, Indianoil Odisha Campus, Bhubaneswar 751013, India

[4] Dr Reddys Inst Life Sci, Univ Hyderabad Campus, Hyderabad 500046, India

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2022年 / 1254卷

关键词：

Isocoumarin; Ultrasound; Cu(OAc)(2); Cyclization; TANDEM INTRAMOLECULAR AMINOPALLADATION; CONJUGATE ADDITION; MEDIATED REACTIONS; HECK REACTION; HALIDE-IONS; PALLADIUM; CYCLIZATION; ALKYNES; OXYPALLADATION; ALKENYLATION;

D O I：

10.1016/j.molstruc.2022.132418

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A rapid synthesis of isocoumarins has been achieved via the Cu-catalysed cascade reaction involving tandem intramolecular cyclization followed by olefin addition under ultrasound irradiation. The methodology involved one-pot reaction of 2-alkynylbenzoate esters with methyl vinyl ketone in the presence of Cu(OAc)(2) in aqueous DMF to afford a range of isocoumarin derivatives bearing 3-oxobutyl moiety at C-4 position. The use of inexpensive, stable and environmentally friendly catalyst along with aqueous media, shorter reaction time and simple operational procedure are the key advantages of this Pd-free methodology. 2009 Elsevier Ltd. All rights reserved. (C) 2022 Elsevier B.V. All rights reserved.

引用

页数：5

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