37981-94-5Relevant academic research and scientific papers
Reactions of CF3-substituted boranes with α-diazocarbonyl compounds
Elkin, Pavel K.,Levin, Vitalij V.,Dilman, Alexander D.,Struchkova, Marina I.,Belyakov, Pavel A.,Arkhipov, Dmitry E.,Korlyukov, Alexander A.,Tartakovsky, Vladimir A.
supporting information; experimental part, p. 5259 - 5263 (2011/10/31)
Boranes substituted with a CF3-group can be generated from methyl boronic esters RB(OMe)2 and Me3SiCF3/KF followed by treatment with Me3SiCl. These boranes are stable only in coordinating solvents, and due to the increased Lewis acidity of boron, react rapidly with α-diazocarbonyl compounds to give the products of transfer of the organic group from boron. Alkyl, aryl, vinyl, and alkynyl boronic esters can be used in this reaction.
Quinolinium dyes and borates in photopolymerizable compositions
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, (2008/06/13)
Dye compounds of the formula wherein X is for example CH, C-CH3 or +NOR L-; R is inter alia C1-C6alkyl; R1 is for example C1-C8alkoxy or C1-C12alkyl; s is 0 to 4; R2 is for example hydrogen; Ar is for example a group Y inter alia is C1-C6alkyl or C1-C6alkoxy; r in the formula (A) is 0 to 5, in the formulae (B) and (E) is 0 to 9 and in the formula (D) is 0 to 7; and L is an anion; in combination with an electron donor compound, especially a borate compound, are suitable as photoinitiators for the photopolymerization of radically polymerizable compositions.
Organoboranes. LI. Convenient procedures for the recovery of pinanediol in asymmetric synthesis via one-carbon homologation of boronic esters
Brown, Herbert C.,Rangaishenvi, Milind V.
, p. 15 - 30 (2007/10/02)
Matteson's asymmetric synthesis via a one-carbon homologation of the pinanediol boronic esters with (dichloromethyl)litihium at -100 deg C results in the insertion of a chloromethyl group into the carbon-carbon bond with > 99percent diastereoselectivity.This procedure makes possible the asymmetric synthesis of the chiral moiety, RR'CH*B(OR'')2, providing an alternative route to chiral hydroboration for these valuable chiral intermediates.Unfortunately, this method suffers from the remarkable difficulty encountered in the recovery of the pinanediol chiral auxiliary, making this asymmetric synthesis impractical.Fortunately, a systematic study of the problem has uncovered convenient procedures for the recovery of pinanediol from pianendiol boronate esters
Ring Enlargement of Boracyclanes via Sequential One-Carbon Homologation. The First Synthesis of Boracyclanes in the Strained Medium Ring Range.
Brown, Herbert C.,Phadke, Avinash S.,Rangaishenvi, Milind V.
, p. 6263 - 6264 (2007/10/02)
We explored the Matteson homologation procedure as a means of enlarging the size of the ring in B-methoxyboracyclanes.
