Apr 4, 2016. The benzyl carbon is the carbon immediately proximate to a phenyl ring. Given this definition, #C_6H_5CH_2Br# is benzyl bromide; #C_6H_5CH_2OH# is benzyl alchohol, #C_6H_5CH_2NH_2# is benzylamine. Benzylic substitution can offer some enhancement to stability and reactivity.
Numeric keypad. A numeric keypad, number pad, numpad, or ten key, is the palm-sized, 17-key section of a standard computer keyboard, usually on the far right.It provides calculator-style efficiency for entering numbers.he arrangement of digits on numeric keypads with the 7-8-9 keys two rows above the 1-2-3 keys is derived from calculators and cash registers. It is notably different from the layout of telephone Touch-Tone keypads which have the 1-2-3 keys on top and 7-8-9 keys on the third row.
Mouse keys. Mouse keys is a feature of some graphical user interfaces that uses the keyboard (especially numeric keypad) as a pointing device (usually replacing a mouse). Its roots lie in the earliest days of visual editors when line and column navigation was controlled with arrow keys (e.g., hjkl, ctl-esdx).