Reductive coupling of ketones to form alkenes, an extremely useful synthetic process in organic chemistry, is most often achieved with the aid of low-valent titanium reagents, according to the procedure developed by McMurry."] It is generally accepted that this reaction involves the intermediacy of
New insights into the crystallization mechanism of microporous AlPO4-21
β Scribed by Zaiqun Liu; Wenguo Xu; Guangdi Yang; Ruren Xu
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 159 KB
- Volume
- 22
- Category
- Article
- ISSN
- 1387-1811
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## Abstract The biologically active metabolite of vitamin D, 1,25βdihydroxyvitamin D~3~ (1,25(OH)~2~D~3~) is a secosteroid whose genomic mechanism of action is similar to that of other steroid hormones and is mediated by stereospecific interaction of 1,25(OH)~2~D~3~ with the vitamin D receptor (VDR