## Abstract For Abstract see ChemInform Abstract in Full Text.
The Hydroboration of Some Steroidal Hydroxymethylene Derivatives.
โ Scribed by Khaled Al-Fouti; James R. Hanson
- Publisher
- John Wiley and Sons
- Year
- 2003
- Weight
- 170 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0931-7597
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๐ SIMILAR VOLUMES
## Abstract For Abstract see ChemInform Abstract in Full Text.
The stereochemistry of hydroboration of rigid systems can usually be predicted from steric parameters which direct the reagent to the less hindered side of the molecule (3a,b) We wish to report that hydroboration of the synthetic (f) tetracycle Ia(4,5) carried out with tert-2,3\_dimethylbutylborane(
IN the Table are listed approtidmate first. order rate constants for the folloting pseudo-unimoleoular reactions: (a), the quaterhisation of some j-dimethylaminocholestanes in a large excess of neat methyl iodide at 21' (kq); (b) the conversion of the resultant trimethylammonium salts and also of tw