ethylenthioketal of 6-methoxy-α-tetralone;6'-methoxy-3',4'-dihydro-2'H-spiro[1,3-dithiolane-2,1'-naphthalene];7'-methoxyspiro[1,3-dithiolane-2,4'-2,3-dihydro-1H-naphthalene]
An efficient deprotection of dithioacetals to carbonyls using Oxone–KBr in aqueous acetonitrile
摘要:
A simple and efficient method has been developed for the chemoselective dethioacetalization of dithioacetals to aldehydes and ketones using Oxone-KBr in aqueous acetonitrile at room temperature. (c) 2006 Elsevier Ltd. All rights reserved.
Protection of a variety of carbonyl compounds as thioacetals using indium triflate, a mild Lewis acid catalyst, was achieved at ambient temperature in very good yield. Transthioacetalization of oxyacetals into thioacetals was also achieved in an excellent yield. A mixture of carbonyl compound and its respective oxyacetal was also completely converted into thioacetal in the presence of indium triflate. (C) 2002 Elsevier Science Ltd. All rights reserved.
A convenient oxidative demasking of 1,3-dithiolanes and dithianes to carbonyl compounds with TBHP
作者:Nivrutti B Barhate、Popat D Shinde、Vishal A Mahajan、Radhika D Wakharkar
DOI:10.1016/s0040-4039(02)01210-8
日期:2002.8
Regeneration of carbonyl compounds from their 1,3-dithiolanes and dithianes was achieved using tert-butyl hydroperoxide (TBHP, aq. 70%) in high yields. Thus, an efficient, economic and experimentally simple protocol for dethioacetalization has been demonstrated. (C) 2002 Elsevier Science Ltd. All rights reserved.
Tributyltin hydride: a selective reducing agent for 1,3-dithiolanes
作者:Carlos G. Gutierrez、Rex A. Stringham、Tadashi Nitasaka、Karl G. Glasscock
DOI:10.1021/jo01305a004
日期:1980.8
GUTIEREEZ C. G.; STRINGHAM R. A.; NITASAKA T.; GLASSCOCK K. G., J. ORG. CHEM., 1980, 45, NO 17, 3393-3395
作者:GUTIEREEZ C. G.、 STRINGHAM R. A.、 NITASAKA T.、 GLASSCOCK K. G.
DOI:——
日期:——
An efficient deprotection of dithioacetals to carbonyls using Oxone–KBr in aqueous acetonitrile
A simple and efficient method has been developed for the chemoselective dethioacetalization of dithioacetals to aldehydes and ketones using Oxone-KBr in aqueous acetonitrile at room temperature. (c) 2006 Elsevier Ltd. All rights reserved.