پروفیسر حافظ محمود خان شیرانی مرحوم
ہم کو ابھی تک اپنے ملک کے علماء اور محققین کی پوری قدر نہیں ہوئی، کیسے افسوس کی بات ہے کہ ہماری قوم اور ملک کے ایک نامور محقق پروفیسر حافظ محمود خان شیرانی کا انتقال ۱۶؍ فروری ۱۹۴۶ء کو ٹونک میں ہوگیا، اور ہم میں سے بہتوں کو اس کی خبر نہیں ہوئی۔
شیرانی مرحوم کا وطن ٹونک تھا، شیرانی پٹھان تھے، اور ان کو اپنے پٹھان ہونے پر فخر تھا، ٹونک ہمیشہ سے علماء اور محققین کا مقام رہا، وہاں کا نادر کتب خانہ اکثر محققوں کو اپنی طرف کھینچ کر لے جایا کرتا ہے، اور شیرانی کا تو وہ وطن ہی تھا، شیرانی صاحب کی انگریزی کی استعداد پوری تھی، فارسی کی تعلیم متوسط اور عربی کی معمولی مگر ان میں تحقیق و تلاش کا مادہ فطرۃً تھا، تاریخ اور خصوصاً تاریخ ادب سے ان کو بے حد شغف تھا، تاریخ کے ذوق سے ان کو کتبوں اور سکون کا شوق تھا، اسی شوق سے وہ لکھنؤ بھی آتے تھے، اور چونکہ ہمارے مدرسہ دارالعلوم ندوۃ العلماء کے درس اول و شیخ الحدیث مولانا حیدر حسن خان صاحب مرحوم بھی ٹونکی تھے، اس تعلق سے وہ کبھی کبھی ہمارے مدرسہ میں بھی ٹھہرتے تھے اور اسی واسطہ سے میری ان کی ملاقات ہوئی، اور اس کے بعد جب وہ لاہور تھے، تو کئی بار ملنا ہوا۔
مرحوم کا سال پیدایش ۱۲۹۸ھ ہے، عمر قریباً سرسٹھ برس تھی ۱۹۰۴ء میں اسکول کی تعلیم چھوڑ کر بیرسٹری کے لیے لندن گئے، جہاں سے والد کی وفات پر ۱۹۰۶ء میں واپس آئے، پھر فوراً واپس گئے، اور ۱۹۱۴ء میں واپس آئے، بیرسٹرتو نہیں ہوئے، مگر قلمی کتابوں کا شوق پید اہوگیا، پیرس کے قومی کتب خانہ میں تین ماہ مصروف رہے، اور وہیں بعض فرانسیسی اہل علم کے ساتھ مل کر...
Allah has created human being and gave him the power of intellectual understandings. To utilize and make positive use of this Allah sent Holy books for guidance. While, keeping the sequence of these books and the historical evolution of human mind, one can easily recognize the symmetrical progress in both. Human starts living in caves and through his intelligence created homes to live, tools to gain meal, and so on, till todays growth. As far as, evolution of Holy books is considered, Scriptures were revealed in different portions as human at that stage couldn’t write or store on pages or another source. Old Testament was revealed earlier. It is combination of Torah, Psalms and other books. In the context of Islam, Torah was the first book revealed on Hazrat Mosa, in which commandments were given as per the level of Bani Israel. Afterwards, Psalms, containing poetic way inspires Bani Israel after the Torah and the Bible Last Holy book in the generation of Israel, comprises of observational and experiential way, as required in that era. Holy Quran, compiled and final version of all the past version, is summary and elemental book. In which, descriptive, observational, experiential, poetic, logical, argumentative and comprehensive technique are present. These all shows, ultimate intellectual growth of human is being address in Holy Quran. As Human is now intellectually at its peak so the teaching and techniques used are at highest level of literature, showing the step by step evolution and association of Holy books with Human being.
Number of thiazine related heterocyclic compounds were synthesized using various approaches to utilize indigenously available raw materials. The syntheses of targeted molecules were afforded by the easy to handle and cost effective routes with the high possible purity and yield. Synthesis of various 1,2-benzothiazine 1,1-dioxides was accomplished via Heck reaction using ligand free palladium catalyst. It involved synthesis of halogen containing sulfonyl chloride, alkyl/aryl sulfonamide, N-alkylation with different alkenyl groups by conventional methodologies followed by improved Heck cyclization with Pd(OAc) 2 /DIPA in 1-methyl-pyrolidin-2-one or toluene. In this way, two isomeric benzothiazines (with endocyclic & exocyclic double bonds) along with seven membered thiazipene products were obtained. It was also found that endocyclic product dominates over the exocyclic isomer. In accordance with the yield, endocyclic product and thiazipines were isolated in almost equal amounts (38.3% & 37.2%). Synthesis of [Cp*Ru(η 6 -((R)-8-(Hydroxy)-2-S-oxa-2-S-phenyl-2,1- benzothiazine))]Cl for their application as catalyst in chiral synthesis is was also accomplished. Chiral 2,1-benzothiazine derivative was employed to its complexation with cyclopentadiene-Ru salt under microwave radiations. One pot synthesis of a series of N-alkyl 1, 2-benzothiazine 1, 1-dioxide derivatives was carried out from commercially available saccharine with improved yield in less time avoiding extra work-ups. Number of carboxamide derivatives were also synthesized by reacting ester with different amines. Further, methyl 4-hydroxy-2H-1,2- benzothiazine-3-carboxylate-1,1-dioxide , N-alkylated derivatives methyl 4-hydroxy-2- methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide, methyl 4-hydroxy-2-ethyl-2H- 1,2-benzothiazine-3-carboxylate 1,1-dioxide & methyl 4-hydroxy-2-propyl-2H-1,2- benzothiazine-3-carboxylate 1,1-dioxide , and carboxamide derivative N-(2-bromo-4- nitrophenyl)-4-hydroxy-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide were oxidized at C-3 carbon to get corresponding alcoholic products which were found dehydrated during crystallization process in methanol.