Reference

Wood preservative compositions

Wood preservative compositions. (Kao Corp., Japan). Jpn. Kokai Tokkyo Koho JP 58188607 A2 4 Nov 1983 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B27K003-50; A01N033-12; A01N037-00; A01N041-04; A01N043-34; A01N059-00. APPLICATION: JP 82-72962 30 Apr 1982. DOCUMENT TYPE: Patent CA Section: 43 (Cellulose, Lignin, Paper, and Other Wood Products) Mixts. contg. RR21N+R2 X- or I, where R is C8-20 alkyl or alkenyl group, R1 is H, C1-5 alkyl, hydroxyalkyl, or aralkyl group, R2 is H or C1-20 alkyl group, and X is an inorg. or org. acid residue, and a polyacid salt are useful as wood preservatives. Thus, wood was immersed in an aq. 2235-43-0 and 22214-02-4 which are cas registry numbers of substances are two of reagents here. compn. contg. 2% benzyllauryldimethylammonium chloride [139-07-1] and 2% Na4P2O5, dried, and stored 3 mo at 30° and 98% relative humidity to give wood without tensile strength loss. .

Dehydrochlorination of 1,4-dichloro-2-butene to 1-chloro-1,3-butadiene under phase-transfer catalysis conditions

Dehydrochlorination of 1,4-dichloro-2-butene to 1-chloro-1,3-butadiene under phase-transfer catalysis conditions. Asatryan, E. M.; Grigoryan, G.In this study， 1310-73-2 and 19379-90-9 are also used. S.; Malkhasyan, A. Ts.; Martirosyan, G. T. (Nauchno-Proizvod. Ob'edin. "Nairit", Yerevan, USSR). Arm. Khim. Zh., 36(8), 527-30 (Russian) 1983. CODEN: AYKZAN. ISSN: 0515-9628. DOCUMENT TYPE: Journal CA Section: 39 (Synthetic Elastomers and Natural Rubber) Section cross-reference(s): 23 1,4-Dichloro-2-butene (I) [764-41-0] was dehydrochlorinated to chloroprene (II) [627-22-5] in aq. 20-45% NaOH at 20-50° and I-NaOH ratios 1:(1-3) in the presence of quaternary ammonium chloride phase-transfer catalysts. The conversion of I after 6 h was 5.4-100% and the yield of II, on consumed I, was 95.2-100%. The optimum conditions of the reaction were established. Activity of the catalysts decreased in the sequence: C16H33(HOCH2CH2)2N+CH2Ph Cl- [65151-47-5] 3 C12H25(HOCH2CH2)2N+CH2Ph Cl- [19379-90-9] > (C10-18 alkyl)Me2N+CH2Ph Cl- 3 C12H25Me2N+CH2Ph Cl- [139-07-1] (n-dodecylbenzyl)pyridinium chloride [2667-22-3]. .