Tetrahedron

Organic chemistry in water (part v) Nucleophilic addition of water-soluble phosphines on activated Alkynes: an efficient synthesis of new vinylphosphonium salts and …

C Larpent, G Meignan, H Patin

Index: Larpent, Chantal; Meignan, Gerard; Patin, Henri Tetrahedron, 1990 , vol. 46, # 18 p. 6381 - 6398

Full Text: HTML

Citation Number: 42

Abstract

Triphenylphosphinc m-trisulfonate [P (mC6H4S03Na) 3= TPPTS] 1 and triphenylphosphine m-monosulfonate [Ph2P (mC6H4SO3Na)= TPPMS] 2 react in water with activated alkynes RC s CA (A= CO2H, CO2Rl, COR2, CHO) affording new vinylphosphonium salts or vinylphosphine oxides or alkenes depending on the pH of the aqueous solution and on the nature of the substituent R. The reactions of 1 or 2 with alkynes bearing an electron- ...

Related Articles:

Immobilized palladium on surface-modified Fe 3 O 4/SiO 2 nanoparticles: as a magnetically separable and stable recyclable high-performance catalyst for Suzuki and …

[Du, Qingwei; Zhang, Wei; Ma, Hao; Zheng, Jia; Zhou, Bo; Li, Yiqun Tetrahedron, 2012 , vol. 68, # 18 p. 3577 - 3584]

Palladium-catalyzed Heck reaction under thermomorphic mode

[Lu, Norman; Chen, Shih-Chieh; Chen, Tsung-Chi; Liu, Ling-Kang Tetrahedron Letters, 2008 , vol. 49, # 2 p. 371 - 375]

Reduction with Samarium (0). Debromination of vic-Dibromides to Alkenes.

[Yanada, Reiko; Bessho, Kiyoshi; Yanada, Kazuo Chemistry Letters, 1994 , # 7 p. 1279 - 1282]

Selective aerobic oxidation of allylic and benzylic alcohols catalyzed by N-hydroxyindole and copper (I) chloride

[Tetrahedron Letters, , vol. 53, # 8 p. 986 - 990]

The ultrasound promoted Knoevenagel condensation of aromatic aldehydes

[McNulty, James; Steere, Jennifer A.; Wolf, Sonja Tetrahedron Letters, 1998 , vol. 39, # 44 p. 8013 - 8016]

More Articles...