SE' Addition of homochiral α-alkoxyallylstannanes to aldehydes
✍ Scribed by James A. Marshall; Wei Yi Gung
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- French
- Weight
- 918 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0040-4020
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📜 SIMILAR VOLUMES
An efficient route to the MOM-protected a-hydroxylallylstannane propargylic aldehyde 15 starting from geraniolis described. Cyclization of 15 to the 1Cmembered cembranolide intermediate 16, a 7:l mixture of cis and trans isomers, is effected in 80% yield with BF3. OEtz at -78°C.
The first examples of enantioselective addition of anthrones to a,b-unsaturated aldehydes are disclosed. The reaction was performed at À40 °C achieving high yields and enantioselectivities.
Pyrrole derivatives R 0120 Metal Triflate Catalyzed Conjugate Addition of Homochiral Pyrroles to α,β-Unsaturated Esters. -A series of alkylated pyrrole derivatives is synthesized from homochiral pyrroles via Y(III)-catalyzed regioselective alkylation with activated styrene derivatives. -(UENALEROGLU