Pd. Ren et al., HIGHLY ERYTHRO-SELECTIVE 2-CYCLOHEXENYLATION OF ALDEHYDES PROMOTED BYACTIVE METAL BISMUTH FROM NABH4 AND BICL3, Synthetic communications, 27(15), 1997, pp. 2569-2576
In the presence of Bu4NBr in DMF solution, the reaction of 3-bromocycl
ohexene and active metal bismuth from NaBH4 and BiCl3 with aromatic an
d aliphatic aldehydes provides excellent erythro-selective products.