Additions and Corrections-Vapor Phase Bromination of 2, 3

ADDITIONS AND CORRECTIONS VOL.19, 1954

M. Yanagita and S. Inayama, “Analogs of Santonin. 111.”Page 1726, Formula I should read:

CHC1, Page 1729, line 7, for “cis-2,4,4-Trimethylcyclohexan-l-o1(IV)” please read “trans-2,4 ,4-Trimethylcyclohexan-1-01(IV) .” Page 1732, line 35, for “the mixture was acidified with a few drops of acetic acid” please read “the mixture was heated a t 70-75” for 3 hours, then acidified with a few drops of acetic acid.” M. YANAGITA January 13, 1955 VOL. 20, 1955 M. S. Kharasch, Y. C. Liu, and W. Nudenberg, ‘Vapor Phase Bromination of 2 ,3-Dimethylbutane and 2,2,4,4-Tetramethylpentane.” Page 683, the correct diagram in the middle of this page is as follows:

Brz

hv __f

2Br-

(CHa)3CH

+

Br.

--$

(CH3)3C*

+

HBr

h

(CH3)aCBr (CH3),CH

+ (CH&CH=CH2 7

1793

Dibromides and polybromides

+

(CH&CH=CH2 HBr M. S. KHARASCH August 8, 1955