R)-(+)-4-Hydroxy-2-pyrrolidinone, 97% 1g; 5g47,917-9 (S)-(â)-4-Hydroxy-2-pyrrolidinone, 97% 1g; 5g These amino diols are used in the efficientsynthesis of (R)- and (S)-5-hydroxymethyl-2-oxazolidinones and derivatives.5,613-6 (R)-(+)-4-(Chloromethyl)-2,2-dimethyl-1,3-dioxolane, 98% 1g; 5g45,614-4 (S)-(â)-4-(Chloromethyl)-2,2-dimethyl-1,3-dioxolane, 98% 1g; 5g Precursor in the short and practical synthesesof (R)-(â)-carnitine and (R)-(â)-Î³-amino-Î²-hydroxybutyric acid (GABOB). Kolb, H.C. et al.
Georgia was first supplied with only one area code, 404, in 1947. In 1954, 912 was given to its southern and central areas. The state would operate with two area codes until May 3, 1992, when 706 was created for the two separate areas outside of the metro Atlanta area.
1 This area code originally covered all of Georgia, but it was split to create Area code 912 in 1954; Area code 706 in 1992; and area code 770 in 1995. 2  Area code 404 is now completely surrounded by area code 770, which forms an annulus around it. 3  Overlaid by 678 in 1998.