Efficient P, O chelate palladium(II)/AgNO3 cocatalyzed homocoupling of aromatic terminal alkynes in aqueous media under ambient atmosphere. (4th March 2017)

• Record Type: Journal Article
• Authors: Chen, Bo; Guo, Mengping; Wen, Yongju; Shen, Xiuli; Zhou, Xiuling; Lv, Meiyun
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 192:Number 3(2017)
• Page Start: 259
• Page End: 263
• Publication Date: 2017-03-04
• Subjects: Aromatic terminal alkynes -- P, O chelate Pd(II) complex/AgNO3 cocatalyst -- homocoupling reaction -- 1, 4-disubstituted-1, 3-diynes; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2016.1239199
• Languages: English
• ISSNs: 1042-6507

Abstract

GRAPHICAL ABSTRACT: ABSTRACT: A new and efficient protocol for the P, O chelate Pd(II)/AgNO3 cocatalyzed oxidative homocoupling reaction of aromatic terminal alkynes in the synthesis of symmetrical 1, 4-disubstituted-1, 3-diynes was described in aqueous media under ambient atmosphere. The results showed that both NEt3 and THF/H2 O (in 4:1 proportion) played crucial roles in the reaction. In contrast, this protocol employs a low palladium(II) complex loading and AgNO3 as cocatalyst to obtain the homocoupled products in moderate to good yields.