Canadian Journal of Chemistry p. 766 - 774 (1996)
Update date:2022-09-26
Topics:
Xu, Wei
Vittal, Jagadese J.
Puddephatt, Richard J.
A calix[4]arene 1b has been substituted at the lower rim by reaction with propargyl bromide to give either the 1,3- bis(propargyl) derivative 26, which is formed regioselectively, or the tetrakis(O-propargyl)calix[4]arene 3 under different reaction conditions. The molecular structure of 2b has been characterized by X-ray analysis (monoclinic, space group P21/c, Z = 4, a = 10.960(1), b = 24.302(3), c = 10.673(1) A, β = 112.99(8)°, R = 0.0516). The molecules of 2b in the crystal are arranged in a "head-to-head, tail-to-tail" manner with a phenyl substituent of one molecule partly enclosed in the bowlic cavity of another. Since the two OCH2C≡CH groups are accessible, 2b can be polymerized by heating to 250°C and the polymerized propargyl calix[4]arene derivatives are stable up to 460°C. Compound 3 exists as a mixture of conformers, the ratio of partial cone to 1,3-alternate conformations being 4:1 or 2:1, dependent on the preparative conditions. These propargyl calix[4]arene derivatives can be further derivatized to form silver(I) or gold(I) alkynyl units by reaction with AgNO3 or [AuCl(SMe2)], respectively, and base. Further reaction of these transition metal complexes with phosphines yields calixarene derivatives with two metalphosphine units at the lower rim of the calix[4]arene bowl.
View MoreTianjin Anda North Industrial & Business Co.Ltd.
Contact:86-22-24999306
Address:No.11 Erwei Road,Dongli Development Area,Tianjin,China
website:http://www.uvchemkeys.com
Contact:0086-021-58785816
Address:RM2607 Building No.1 Guosheng, Lane 388, Zhongjiang Road, Putuo District, Shanghai 200062 China
Yangzhou Siyu Chemical Co.,Ltd.
Contact:+86-514-87325867 13358126196
Address:Room 620 Exposition Pavilion,No. 98 Huaihai Road,Guangling District,Yangzhou City, Jiangsu Province
QINGDAO HONG JIN CHEMICAL CO.,LTD.
website:http://www.hongjinchem.com
Contact:+86-532-83657313
Address:2ND Building, 8 Shangqing Road, Qingdao, Shandong Province, China.
Shandong General Materials Co.,Ltd(Shandong Aoertong Chemical Co., Ltd)
Contact:86-531-88072280
Address:No. 1825 Hualong Road, Licheng District, Jinan, Shandong, China
Doi:10.1002/adsc.201600357
(2016)Doi:10.1016/0040-4039(96)00713-7
(1996)Doi:10.1016/0277-5387(95)00563-3
(1996)Doi:10.1021/ja01499a031
(1960)Doi:10.1016/S0040-4039(00)97181-8
(1990)Doi:10.1016/0040-4039(96)00820-9
(1996)