Chemistry of Heterocyclic Compounds p. 1034 - 1039 (1985)
Update date:2022-09-26
Topics:
Dovgilevich, A. V.
Zelenin, K. N.
Espenbetov, A. A.
Struchkov, Yu. T.
Bezhan, I. P.
et al.
It was shown by x-ray diffraction analysis and PMR spectroscopy that 1-acyl-5-hydroxy- and -5-hydrazinopyrazolidines have a conformation with an axial orientation of the functional group attached to the C(5) atom.The 1-salicylyl derivatives constitute an exception: in methanol solutions they exist in a conformation with an equatorial hydroxy group, whereas in dimethylformamide (DMF) the ring undergoes partial opening to give the corresponding β-hydrazido aldehydes.
View MoreSHANDONG ZHANHUA YONGHAO PHARMACEUTICAL TECH.CO.,LTD
Contact:+86-576-88685096
Address:GENGJU VILLAGE NORTH ONE KILOMETER,ZHANHUA DISTRICT,BINZHOU CITY,SHANDONG PROVINCE,CHINA.
Guangzhou PI & PI Biotech Inc. Ltd.
Contact:+86-20-81716320
Address:13th Floor, Xinbao Technology Industrial Park, No. 2 Ruixiang Road, Huangpu District, Guangzhou,Guangdong,China
Contact:+86-18653358619
Address:zibo
Taimai Sanluck Pharmaceutical Co.,Ltd
Contact:86-592-7662921
Address:8D,No.186,Huarong Road,Huli,Xiamen,China
Contact:021-50278900
Address:No.6,Room 201 ,Lane 299,bisheng road ,shanghai ,china
Doi:10.1021/jo01116a612
(1956)Doi:10.1016/S0040-4039(00)94983-9
(1985)Doi:10.1021/jf800651z
(2008)Doi:10.1002/chem.200900231
(2009)Doi:10.1002/poc.4171
(2021)Doi:10.1016/j.carres.2008.05.004
(2008)
