Agm. Barrett et al., Bidirectional asymmetric allylboration and the synthesis of C-2 symmetric 3-methylenepentane-1,5-diols, CHEM COMMUN, (5), 1999, pp. 459-460
The double allylboration of aldehydes using 1,3-bis(diisopinocampheylboryl)
-2-methylenepropane under Brown's salt-free conditions provides Ct symmetri
c 3-methylenepentane-1,5-diols in excellent enantiomeric excess.