Influence of Fluorine and Oxygen Atoms at C-19 on the Previtamin D-Vitamin D Interconversion

DOI: 10.1021/jo01299a032

Source and publish data:

Journal of Organic Chemistry p. 2201 - 2204 (1980)

Update date:2022-08-02

Topics:

Authors:

Sialom, Bonita

Mazur, Yehuda

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1021/jo01299a032

19,19-Difluorocholesteryl acetate (6), prepared by fluorination of 19-oxocholesteryl acetate (5), was converted to the respective 5,7-diene (7) which, on irradiation, gave both 19,19-difluoroprevitamin D₃ (8) and 19,19-difluorotachysterol (9).O

Full text of DOI:10.1021/jo01299a032

Products guided by the article

Product name:19-acetoxyprevitamin D₃ acetate

Cas No:55105-86-7

R&D Labs maybe for 55105-86-7

Shanghai Pengkai Chemical Co.,Ltd

Contact:+86-21-60526671

Address:No.4226 Duzhuang Rd Minhang District Shanghai China
GN chemicals co.,ltd

Contact:86 311 85902108 / 85902109

Address:room 1001-1005 ,huanghe Road ,shijiazhuang ,China
Changzhou BaoKang Pharmaceutical & Chemical Co., Ltd

Contact:(86) 519-88782201 88784080 88785278

Address:Henglin town, changzhou,Jiangsu
Borun Chemical Co.,Ltd.

Contact:+86-574- 87178138; 87297407

Address:No. 809, Liudingxingzuo, cangsong road, Ningbo, China
Weifang Jahwa Chemical Co.,Ltd

Contact:0086-536-8897731,8897730

Address:No.5166 East Dongfeng Street,Weifang,Shandong,China

Relevant to this article

Doi:10.1021/ja01134a503
(1952)
Doi:10.1021/jo00903a016
(1975)
Doi:10.1039/c29700000369
(1970)
Doi:10.1002/jps.2600501111
(1961)
Synthesis and incorporation into PNA of fluorinated olefinic PNA (F-OPA) monomers.

Doi:10.1021/ol034579s
(2003)
An alternative method for the synthesis of 2′-halogeno-1′,2′-unsaturated uridine derivatives through syn-elimination of pivalic acid of 2′-halogeno- 2′-deoxy-1′-pivaloyloxyuracil nucleoside: preparation of its 2′-C-branched nucleosides

Doi:10.1080/15257770.2019.1641724
(2020)

Article Doi