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The XB(C 6 F 5 ) 2 Halogenoborane Route to Phosphole Derivatives
Author(s) -
Möricke Jennifer,
Ueno Atsushi,
Wibbeling Birgit,
Daniliuc Constantin G.,
Kehr Gerald,
Erker Gerhard
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900505
Subject(s) - phosphole , chemistry , reagent , intramolecular force , molar ratio , lewis acids and bases , medicinal chemistry , stereochemistry , organic chemistry , catalysis
The reactions of dimesityl(propynyl)phosphane ( 9 ) with either of the halogeno‐B(C 6 F 5 ) 2 reagents 10a , b (hal: Cl, Br) proceeds through addition and rearrangement to give the unsaturated C 2 ‐bridged Hal–P/B Lewis pairs 12a , b . Their reactions with two molar equiv. of a small series of alkynyllithium reagents R–C≡CLi led to the formation of the phosphole derivatives 17 via intramolecular 1,1‐carboboration reaction.