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2 448 110

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IPC

C07D487/22(2006-01-01)

(21) (22)

Application

2010143255/04, 2010-10-21

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Start date

2010-10-21

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Actual filing date

2010-10-21

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Published

2012-04-20

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Inventor

Kozlov Aleksandr IvanovichZbarskij Vitol'D L'VovichIgnatov Aleksandr VladimirovichPinchuk Jurij Anatol'EvichKuznetsov Leonid AleksandrovichMerkin Aleksandr AleksandrovichKomarov Aleksandr AlekseevichRybin Vadim Evgen'EvichMikhajlov Jurij MikhajlovichMizgunova Elena NikolaevnaVidjaeva Tat'Jana Igorevna

(73)

Holder

Rossijskaja Federatsija, Ot Imeni Kotoroj Vystupaet Ministerstvo Promyshlennosti I Torgovli Rossijskoj Federatsii Rossii)

METHOD FOR DEBENZYLATION OF 2,6,8,12-TETRAACETYL-2,4,6,8,10,12-HEXAAZAISOWURTZITANE Russian patent published in 2012 - IPC C07D487/22

Abstract RU 2448110 C1

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering of organic compounds, specifically to a method for reductive debenzylation of 2,6,8,12-tetraacetyldibenzyl hexaazaisowurtzitane, involving substitution of two benzyl groups with hydrogen in a reductive medium on a palladium catalyst in the presence of an acid, characterised by that reduction is carried out with molecular hydrogen on a heterogeneous catalyst and the support for the active catalyst is made through successive deposition onto granular α-aluminium oxide of, first, γ-aluminium oxide and then pyrocarbon. The active catalyst - hydroxo-complexes of palladium - is deposited on the surface of pyrocarbon.

EFFECT: novel method for reductive debenzylation of 2,6,8,12-tetraacetyldibenzyl hexaazaisowurtzitane, where the use of said support greatly reduces catalyst disintegration, loss thereof during filtration and ensures high output of the end product.

1 cl, 3 ex

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RU 2 448 110 C1

Authors

Kozlov Aleksandr Ivanovich

Zbarskij Vitol'D L'Vovich

Ignatov Aleksandr Vladimirovich

Pinchuk Jurij Anatol'Evich

Kuznetsov Leonid Aleksandrovich

Merkin Aleksandr Aleksandrovich

Komarov Aleksandr Alekseevich

Rybin Vadim Evgen'Evich

Mikhajlov Jurij Mikhajlovich

Mizgunova Elena Nikolaevna

Vidjaeva Tat'Jana Igorevna

Dates

2012-04-20—Published

2010-10-21—Filed