- Tri-n-butyltin cuprate as a tool for the preparation of stannyl derivatives of carbohydrates
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Reaction of tri-n-butyltin cuprate with sterically hindered allylbromides 10(E) and 10(Z) derived from D-galactose led exclusively to S(N)2 products - allyl tributylstannyl sugars 11(E) and 11(Z) in good yield and with retention of the configuration of th
- Jarosz, Slawomir
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p. 10765 - 10774
(2007/10/03)
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- Application of tri-n-butyltin cuprate in sugar chemistry
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Reaction of sugar allyl bromides with tri-n-butylin cuprate gives sugar allyltin derivatives with retention of the configuration of the double bond, that enables to prepare pure trans or cis olefins. Sugar aldehydes of the general formula Sug-CHO react al
- Jarosz, Slawomir
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p. 3063 - 3066
(2007/10/03)
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- FROM SUGAR ALLYLTIN DERIVATIVES TO CHIRAL DIENOALDEHYDES AND TRIENOATES
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Sugar dialdoses 5, 9, 15, and 16 were converted into allyltin derivatives 4, 12, 13, and 14, in yields of 35 - 47percent respectively.Treatment of 4, 12, and 13 with a mild Lewis acid (ZnCl2) in methylene chloride caused rearrangement to appropriate dieno
- Kozlowska, Elzbieta,Jarosz, Slawomir
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p. 889 - 898
(2007/10/02)
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