Synthesis and properties of esters of ?,?-dimethylalkanoic acids and saturated mono-alkanols

Cyclometalation of dialkylbis(triethylphosphine)platinum(II) complexes: formation of Pt,Pt-bis(triethylphosphine)platinacycloalkanes

“…column indicated the formation of 1-ethyl-1-methylcyclopropane (<1% yield, MS in agreement with that reported46): mass spectrum, m/e (%) 84 (23, M+), 69 (60), 56 (45), 55 (87), 53 (14), 42 (12), 41 (100), 40 (12), 39 (37), 29 (22), 27 (32). Repeating this procedure for 3-d6 produced 1 -(ethy 1-í/3)-1 -methylcyclopropane (<1% yield) from 4b-d}: mass spectrum, m/e (%) 87 (49, M+), 73 (12), 72 (84), 71 (12), 70 (14), 69 (36), 59 (36), 58 (30), 57 (26), 55 (86), 54 (12), 53 (16), 44 (24), 43 (54), 42 (60), 41 (100), 40 (25), 39 (49).…”