ERRATA

In the article by I. L. Knunyants, V. V. Shokina, and Li Chzhi-yuan, “Perfluorodienes,” published in DAN, vol. 129, no. 2, 1959:

on p. 328, line 15, the reaction scheme should read:

[
n\cdot \mathrm{CF_2{=}CF_2}+\mathrm{CF_2Cl{-}CFClJ}
\to
\mathrm{CF_2Cl{-}CFCl(CF_2{-}CF_2)_{n-1}{-}CF_2CF_2J};
]

on p. 330, line 29, instead of the printed “104 g of tetrachlorodecadiene,” read: “104 g of tetrachlorodecane.”

In the article by I. L. Knunyants, E. Ya. Pervova, and V. V. Tyuleneva, “Esters of Perfluoroalkenylphosphinic Acids,” published in DAN, vol. 129, no. 3, 1959:

a) on p. 576, line 15, the left-hand part of the formula should read:

[
{>} \mathrm{C{=}CF_2} + :\mathrm{P}
\begin{matrix}
\mathrm{OR}\[-2pt]
|\[-2pt]
\mathrm{OR}\[-2pt]
|\[-2pt]
\mathrm{OR}
\end{matrix}
\to \cdots
]

b) on p. 576, line 9 from the bottom, the series showing activity among olefins should read:

[
\begin{matrix}
\mathrm{CF_2{-}CF}\
| \quad |\
\mathrm{CF_2{-}CF}
\end{matrix}

\begin{matrix}
\mathrm{CF_3}\
\mathrm{CF_3}
\end{matrix}
\mathrm{C{=}CF_2}

\mathrm{CF_3CF{=}CF_2}

\mathrm{CF_2{=}CF_2}
]

In the article by B. V. Vartapetyan and A. L. Kursanov, “Study of the Oxidative Condensation of Catechins with the Aid of (\mathrm{O_2^{18}}) and (\mathrm{H_2O^{18}}),” published in DAN, vol. 129, no. 2, 1959:

on p. 448, line 8, instead of (\mathrm{H_2O_2^{18}}) there should be (\mathrm{H_2O^{18}});

on the same page, the penultimate line of Table 1 refers to the variant (\mathrm{H_2O—O_2^{18}});

on p. 449, line 27, instead of (\mathrm{H_2O—H_2^{18}}) there should be (\mathrm{H_2O—O_2^{18}}).