Reaction of ketone with phosphoruspentabromide or bromine results in bromination (or dibromination) at C-4. The resulting α-bromoketones rearrange rapidly in acid solutions to yield phenols and .
MILLER, BERNARD;SHI, XIAOLIAN, TETRAHEDRON LETT., 29,(1988) N 40, C. 5099-5100
作者:MILLER, BERNARD、SHI, XIAOLIAN
DOI:——
日期:——
Novel rearrangement and cyclization processes resulting from bromination of 1,1-dibenzyltetralin derivatives
作者:Bernard Miller、Xiaolian Shi
DOI:10.1021/jo00032a015
日期:1992.3
Addition of bromine to hydrocarbon 1 results in an aromatic alkylation to form the bicyclo[3.3.1]nonane derivative 5. Addition of bromine to ketone 3 in acetonitrile solution results in a dienone-phenol rearrangement to form phenol 6, while reaction of ketone 4 with phosphorus pentabromide yields phenols 10 and 11. This reaction results from a novel ''bromo ketone-phenol'' rearrangement, as demonstrated by the fact that bromo ketones 12 and 13 spontaneously isomerize to 10 and 11.
Unusual regiochemistry in the hydroboration of 3,3-dibenzylcycloalkenes
作者:Xiaolian Shi、Bernard Miller
DOI:10.1016/s0040-4039(00)76516-6
日期:1994.1
Reaction of 3,3-dibenzylcycloalkenes with diborane results in predominant attack by boron at the more crowded ends of the double bonds.