## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a βFull Textβ option. The original article is trackable v
ChemInform Abstract: A Convenient Synthesis of (22S)-22-Hydroxycampesterol and Some Related Steroids.
β Scribed by Suguru Takatsuto; Tsuyoshi Watanabe; Chiharu Gotoh; Hiroki Kuriyama; Takahiro Noguchi; Shozo Fujioka
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 31 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
A Convenient Synthesis of (22S)-22-Hydroxycampesterol and Some Related Steroids.
-The key step in the synthesis of the title compound (VI) and related steroids like (VII)-(IX) is the Grignard reaction of the aldehyde (I).
π SIMILAR VOLUMES
A New and Convenient Synthesis of Some Substituted Thiohydantoins. -3-Substituted thiohydantoins (III) (7 examples) are synthesized in satisfactory yields by base-mediated reaction of thioureas (I) with chloroacetyl chloride (II). The thiohydantoins smoothly undergo S-alkylation [β(V)]. -
## Abstract The reaction of alkynes such as (I) with hexaalkylguanidinium chlorides (II) provides novel orthoamide derivatives which are converted into propiolamidinium halides, triflates, and tetraphenylborates.