Tetrahedron Letters p. 241 - 244 (1988)
Update date:2022-08-02
Topics:
Joglekar, S. J.
Samant, S. D.
1-(2-Hydroxyphenyl)-3-phenyl-1,3-propanedione (1a) reacts with formaldehyde in the presence of different 1-arylpiperazines (2) to form (1:1) inclusion compounds (3) which on column chromatographic separation yield 4,5;11,12-dibenzo-7-hydroxymethyl-1,3-dioxa-6,10-dioxo-7,9 diphenylcyclododecane (4) and the corresponding 2. 1 react with formaldehyde in the presence of triethylamine to form 3-aroyl-3-(2,3-dihydro-4H-1-benzopyran-4-one-3-ylmethyl)-2,3-dihydro-4H-1-benzopyran-4-one (5) along with benzoic acids and with bezaldehydes in the presence of a base to give 2-aryl-2,3-dihydro-4H-1-benzopyran-4-one (6)
View MoreAnhui Biochem United Pharmaceutical Co., Ltd.
Contact:0086 551 5167062 / 5228268
Address:No. 30 Hongfeng Road, Hi-Tech Development Zone, Hefei (230088), China
Cangzhou Senary Chemical Science-tech Co., Ltd
Contact:+86-317-3563899, 3563699
Address:168 Jinde Road, Cangzhou, Hebei, China
Guilin Zhenda Bio-Tech Co., Ltd.
Contact:86-773-3568977
Address:-Yangtang shangshui industry park, Lingui county,
Xinjiang Zhongtai Chemical Co., Ltd.
Contact:+86-991-8788172
Address:NO.78 XISHAN RD.URUMQI，CHINA
Contact:+8613400661290
Address:No 908,Kangwan Rd, Liuyang Economic
Doi:10.1016/0040-4039(88)85264-X
(1988)Doi:10.1002/hc.21217
(2014)Doi:10.1021/jo00258a018
(1988)Doi:10.1016/S0040-4039(00)82029-8
(1988)Doi:10.1039/c6cc04381j
(2016)Doi:10.1016/j.bmc.2009.04.036
(2009)
