ChemInform Abstract: Structural Studies of Organoboron Compounds. Part 57. Synthesis and Structure of Bicyclic Boron‐Nitrogen Betaines. 1‐Methyl‐5‐(3‐ nitrophenyl)‐4,6,9‐trioxa‐1‐azonia‐5‐boratabicyclo(3.3.1)nonane and 3, 3,4‐Trimethyl‐1‐(3‐nitrophenyl)‐2,6,7‐trioxa‐3‐azonia‐1‐boratabicyclo( 2.2.2)octane.
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