546
CHARLES D. HURD AND CARL N. WEBB
[CONTRIBUTION FROM THE CHEMICAL
VOl. 49
LABORATORY OF NORTHWESTERN UNIVERSITY]
THE USE OF GRIGNARD REAGENTS IN ATTEMPTED SYNTHESES OF ASYMMETRIC ALLENE BASES BY CHARLES D. HURDAND CARLN. WEBB RECEIVED NOVEMBER 18, 1926
PUBLISHED FEBRUARY 5, 1927
Nearly fifty years ago, van’t Hoff ventured the prediction of optical isomerism in certain types of allenes. This speculation was based on the concept of molecular asymmetry rather than atomic asymmetry. Mole)C=C=C(r, and R )C=C=C
