Preparation and use of (2-butene-1,4-diyl)magnesium complexes in

Details Preparation and use of (2-butene-1,4-diyl)magnesium complexes in Preparation and use of (2-butene-1,4-diyl)magnesium complexes in

1991-09-23

1993-07-27

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556449, 556466, 260665R, 560129, 568817, 568819, 568870, 568393, 568374, 558365, 558366, 558384, 570186, 585360, 585361, C07F 708

Patent

active

052312054

ABSTRACT:
The magnesium complexes of cyclic hydrocarbons, such as 1,2-dimethylenecycloalkanes, are readily prepared in high yields using highly reactive magnesium. Reactions of these (2-butene-1,4-diyl)magnesium reagents with electrophiles such as dibromoalkanes, alkylditosylates, or bromoalkylnitriles serve as a convenient method for synthesizing spirocyclic systems. Significantly, spirocarbocycles prepared by this

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