1569906-00-8Relevant articles and documents
Syntheses of [6,6]-fused-ring 1,2-azaborines
Rohr, Ahleah D.,Kampf, Jeff W.,Ashe, Arthur J.
, p. 1318 - 1321 (2014)
BN-naphthalene (2) and BN-tetralin (7) have been prepared by a short synthesis from allyltributylstannane (3). The reaction of 3 with BCl3 followed by diallylamine and Et3N afforded (diallylamino) diallylborane (5), which gave 1,4,5,8-tetrahydro[1,2]azaborino[1,2-a][1,2] azaborine (6), on treatment with Grubbs (I) catalyst. The reaction of 6 with Pd gave 2 and 7. The reaction of 7 with Cr(CO)6 gave the corresponding Cr(CO)3 adduct 8, for which a crystal structure has been obtained. The isomerization of 6 to 7 has been examined using DFT calculations.