Dichlorodimethylsilane → 5,5,9,9-Tetrabutyl-7,7-dimethyl-6,8-dioxa-7-sila-5,9-distannatridecane

HRID 707742Notes

Reaction equation

HRID 707742 reaction equation
C([Sn](CCCC)(CCCC)[O:6][Sn:7]([CH2:16][CH2:17][CH2:18][CH3:19])([CH2:12][CH2:13][CH2:14][CH3:15])[CH2:8][CH2:9][CH2:10][CH3:11])CCC.Cl[Si:29](Cl)([CH3:31])[CH3:30]>>[CH2:16]([Sn:7]([CH2:12][CH2:13][CH2:14][CH3:15])([CH2:8][CH2:9][CH2:10][CH3:11])[O:6][Si:29]([O:6][Sn:7]([CH2:8][CH2:9][CH2:10][CH3:11])([CH2:12][CH2:13][CH2:14][CH3:15])[CH2:16][CH2:17][CH2:18][CH3:19])([CH3:31])[CH3:30])[CH2:17][CH2:18][CH3:19]

Participants

3

Reactant 2

HCID 6398DichlorodimethylsilaneHCID 16682746Bis(tributyltin) oxide

Product 1

HCID 166889705,5,9,9-Tetrabutyl-7,7-dimethyl-6,8-dioxa-7-sila-5,9-distannatridecane

Conditions

Temperature
180 °C

Procedure

Hexabutyldistannoxane (2 equiv.) was slowly added dropwise with stirring to dimethyldichlorosilane (19), followed by heating to 180° C. for 4 hours and vacuum distillation to give bis(tri-n-butylstannyloxy)dimethylsilane 24. Equimolar amounts of 23 and 24 in THF were stirred at room temperature for 4 hours before cyclosiloxane 25 was isolated by distillation.

Workup

  1. distillationvacuum distillation

Sources & evidence

ORD record
ord-11d3e7ce99324d6c90b37e5290f1b6ee
Source dataset
uspto-grants-2015_11
Patent number
US09175141B2

Reaction notes

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