C. Kratky, U. Wagner, K. Ute
Apr 1, 1992
Citations
0
Influential Citations
5
Citations
Journal
Macromolecules
Abstract
Unimers of tribromoacetaldehyde (bromal) were prepared by the addition of equimolar amounts of lithium tert-butoxide or bornyl oxide to bromal followed by acetate end capping. This bornyl oxide-initiated unimer resulted in a crystalline mixture of the R and S diastereomers which had a melting range of 48-55°C. Fractional crystallization from methanol gave compound A, mp=83.5-84.0 o C, and compound B, mp= 82.0-82.5°C. The optical rotation of A was [α] D = -14.4°; that of B was [α] D = -29.7°. the absolfute configuration of A and B was determined by X-ray diffraction