1.
Org Lett
; 19(7): 1882-1885, 2017 04 07.
Article
in English
| MEDLINE
| ID: mdl-28357865
ABSTRACT
Bisphosphorylallenes were easily obtained in multigram scale from the Wittig-type rearrangement of bispropargyl alcohols. Unlike other conjugated bis-allenes, these reagents underwent a double cyclization mediated by iodine or copper dibromide leading to the formation of bis-1,2-oxaphospholenes.