5428 J. Org. Chem., Vol. 47, No. 27, 1982
Additions and Corrections
James B. Ellern. The Myth of Saturated Aqueous Sodium Chloride Solution (Brine) for Drying Organic Solutions.
Flgure 2.
l
~
~
~
~
~
i 206+28=208 - 3 ~ ~
-
Ql
kdlD { = 3 2.'
]
08 -
Page 3569. 12th line of third paragraph "... is 0.75."
1033,'
(11:)
172s)
127-1
A d
MC,$lD
iOSlMC3
p
I
L 321+H=322 ( 3 7%)
2
y206+2H=208 fi--(172)
M = 525 (3 3;) 230, C k H + 0 2 ( S , M e l ) : 187, C,H,O,AcSiMe,
_i / -z
_rrlz-
(100'.) ( 3 72)
c 291tH=292 ( 3 5%)
3, M = 525 (6 0") -21: 230 (10Goe) m/r 187 (46%)
Samuel Danishefsky* and James F. Kerwin, Jr.. On the Addition of Allyltrimethylsilane to Glycal Acetates. Page 3804. Column 2. Structures 9 and 10 are drawn incorrectly. Correct representations are shown below.
103 (100 I-'
,
103 d ' (85%)
'
I
L 409iH.410
379tH.380
(4 0 4 )
(4 7%)
L 4 2 5 (3.2;)
5, M = 613 ( 3 8 % ) -mlz 230 ( 4 8 % )
4, M = 613 (33%) -m/z - _ 230 (72;) 187 (11:)
__
I?
!P
Fir 187 (73X)
Figure 4. HtJAc
Eric Jan Leopold. Vacuum Dry Column Chromatography. (+H+SiMe3=226 ( 2 9 % )
7, M = 501 ( 2 . 9 : )
Page 4592, fmt paragraph. The fmt sentence was inadvertently printed incorrectly. It should read as follows: "Today's organic chemist is faced with a variety of techniques for purifying mixtures on a large or small scale."