Novel syntheses of 1-trialkylsilyl-1,3-diynes and 1,4-bis-silyl-1,3-butadiynes from Z-1-methoxy-1-buten-3-yne
β Scribed by Elaine C. Stracker; George Zweifel
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- French
- Weight
- 201 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
Organo-selenium compounds ## Organo-selenium compounds S 0130 Perthio-and Perseleno-1,3-butadienes, -but-1-ene-3-ynes, and -[3]-cumulenes: One-Step Syntheses from 1,4-Dilithio-1,3-butadiyne. -1,4-Dilithio-1,3-butadiyne is easily generated by lithiation of a freshly prepared solution of 1,3-butadiyn
preparation of 2-alkyl-2,3-dihydro-y-pyrones frm 1-methoxy-1-buten-3-yne A method for the ,& and aliphatic aldehydes is reported. We recently reported that addition of the lithim acetylide of 1-methoxy-l-buten-3-yne $, to laytones followed by acid hydrolysis provides high yields of dihydropmne spir
Chemo-and regioselective hydroborations of I-(dimethylthexylsilyl)-1,3-diynes with dicyclohexylborane or with [bis(l,2-dimethylpropyl)borane] furnishes organoboranes which afford on protonation (Zj-enynes and on oxidation alkynyl ketones. We have previously shown that monohydroborations of symmetric